diff --git a/README.md b/README.md
index 7b408c8..acd0e97 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 [![Join the chat at https://gitter.im/nupic-community/nupic.visualizations](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/nupic-community/nupic.visualizations?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 
-Work with NuPIC results interactively in a [nice web UI](https://nupic-visualizations.firebaseapp.com/). This app is designed to consume and render CSV files output by NuPIC, but it can read any CSV file with numerical data that has a timestamp as one of its fields.
+Work with NuPIC results interactively in a [nice web UI](https://nupic-visualizations.firebaseapp.com/). This app is designed to consume and render CSV files output by NuPIC, but it can read any CSV file with numerical data that represent some time-series. 
 
 ![NuPIC Visualizations screenshot](https://raw.githubusercontent.com/wiki/nupic-community/nupic.visualizations/images/nupic_visualizations.png)
 
@@ -56,6 +56,7 @@ There are demo files in `examples/` for NuPIC OPF, NAB and generic CSV files.
 
  * Select a local file by clicking 'Browse...', this will start rendering a new graph. 
   * You may get warning/error labels, that can be closed.
+  * You can also enter a URL of a remote file for streaming (in supported by the server). 
  * To zoom in on the graph, click and drag with the cursor. To zoom out, double-click. To pan on a zoomed graph, hold the ALT key (on Linux, hold the SHIFT key), while dragging the cursor.
  * The options to the right of the graph allow the user to:
   - Set the visibility of certain series
@@ -67,7 +68,7 @@ There are demo files in `examples/` for NuPIC OPF, NAB and generic CSV files.
 The goals of this project are:
 * nice, convenient & easy to use interactive graph visualizations
 * seamlessly runs everywhere (in web-browser, or [cloud](https://nupic-visualizations.firebaseapp.com/))
-* plot as much as possible - generic CSV
+* plot as much as possible - generic CSV (local or remote files)
  * tries to parse timestamp/x-data from many formats
  * no restrictions on the header format
  * can plot even non-standart data - strings (planned)
diff --git a/build/app.js b/build/app.js
index e63790f..fb88676 100644
--- a/build/app.js
+++ b/build/app.js
@@ -1 +1 @@
-angular.module("app",["ui.bootstrap"]),angular.module("app").constant("appConfig",{TIMESTAMP:"timestamp",EXCLUDE_FIELDS:[],HEADER_SKIPPED_ROWS:1,ZOOM:"HighlightSelector",NONE_VALUE_REPLACEMENT:0,WINDOW_SIZE:1e4,MAX_FILE_SIZE:62914560,LOCAL_CHUNK_SIZE:65536,REMOTE_CHUNK_SIZE:65536,HIGHLIGHT_RADIUS:10}),angular.module("app").controller("appCtrl",["$scope","$http","$timeout","appConfig",function(e,i,n,t){function a(i,n,a){function d(e,t,l){var o=a.toDomXCoord(e),r=a.toDomXCoord(t),d=r-o;i.fillStyle=l,i.fillRect(o,n.y,d,n.h)}function s(e,i,n){var t=[],a=o.indexOf(i);if(-1===a)return S("Highlighting cannot work, field "+i+" not found!","danger",!0),[];for(var l=0;l<e.length;l++){var r=e[l][a];if(r>=n){var d=e[l][g];t.push(d)}}return t}for(var g=o.indexOf(t.TIMESTAMP),h=0;h<e.view.fieldState.length;h++){var u,f,p,w;if(w=e.view.fieldState[h],w.highlighted===!0&&null!==w.highlightThreshold){u=s(r,w.name,w.highlightThreshold),f=.01*l.length;var c=.4;p=w.color.replace("rgb","rgba").replace(")",","+c+")");for(var v=-1,m=0;m<u.length;m++)u[m]-f>=v&&(d(u[m]-f,u[m]+f,p),v=u[m]+f)}}}e.view={fieldState:[],graph:null,dataField:null,optionsVisible:!0,filePath:"",loadedFileName:"",errors:[],loading:!1,windowing:{threshold:t.MAX_FILE_SIZE,size:-1,show:!1,paused:!1,aborted:!1,update_interval:1}};var l=[],o=[],r=[],d={},s=!1,g=0,h=-1,u=null,f=!1;e.toggleOptions=function(){e.view.optionsVisible=!e.view.optionsVisible,e.view.graph&&(d.resize=n(function(){e.view.graph.resize()}))},e.getRemoteFile=function(){e.view.windowing.show=!1,e.view.windowing.paused=!1,e.view.windowing.aborted=!1,e.$broadcast("fileUploadChange"),e.view.loading=!0,i.head(e.view.filePath,{headers:{Range:"bytes=0-32"}}).then(function(n){206===n.status?i.head(e.view.filePath).then(function(i){var n=i.headers("Content-Length");n>e.view.windowing.threshold&&-1!==e.view.windowing.threshold&&(e.view.windowing.show=!0,e.view.windowing.size=t.WINDOW_SIZE,S("File too large, automatic sliding window enabled.","warning")),m(e.view.filePath)}):v(e.view.filePath)},function(){v(e.view.filePath)})},e.canDownload=function(){var i=e.view.filePath.split("://");return("https"===i[0]||"http"===i[0])&&i.length>1&&i[1].length>0?!0:!1},e.abortParse=function(){angular.isDefined(u)&&angular.isDefined(u.abort)&&(u.abort(),e.view.windowing.paused=!1,e.view.windowing.aborted=!0)},e.pauseParse=function(){angular.isDefined(u)&&angular.isDefined(u.pause)&&(u.pause(),e.view.windowing.paused=!0)},e.resumeParse=function(){angular.isDefined(u)&&angular.isDefined(u.resume)&&(u.resume(),e.view.windowing.paused=!1)},e.getLocalFile=function(i){e.view.filePath=i.target.files[0].name,i.target.files[0].size>e.view.windowing.threshold&&-1!==e.view.windowing.threshold&&(e.view.windowing.show=!0,e.view.windowing.size=t.WINDOW_SIZE,S("File too large, automatic sliding window enabled.","warning")),e.view.loading=!0,E(i.target.files[0])};var p=function(e){var i=e.split("/");return i[i.length-1]},w=function(i){for(var n=-1,a=0;a<i.length;a++){for(var d=[],u=0;u<o.length;u++){var p=o[u],w=i[a][p];if(p===t.TIMESTAMP){if(g++,s?w=g:"number"==typeof w||("string"==typeof w&&null!==b(w)?w=b(w):(S("Parsing timestamp failed, fallback to using iteration number","warning",!0),w=g)),n>=w&&1!==i[a][h]){S("Your time is not monotonic at row "+g+"! Graphs are incorrect.","danger",!1),console.log("Incorrect timestamp!");break}n=w}else"None"===w&&(w=t.NONE_VALUE_REPLACEMENT);d.push(w)}d.length===o.length?(l.push(d),r.push(angular.extend([],d)),-1!==e.view.windowing.size&&l.length>e.view.windowing.size&&(l.shift(),r.shift())):console.log("Incomplete row loaded "+d+"; skipping.")}null===e.view.graph?P():g%e.view.windowing.update_interval===0&&e.view.graph.updateOptions({file:l}),f||(e.$apply(),f=!0)},c=function(){e.view.fieldState.length=0,e.view.graph=null,e.view.dataField=null,e.view.errors.length=0,e.view.loadedFileName="",s=!1,g=0,l.length=0,o.length=0,f=!1},v=function(i){c(),Papa.parse(i,{download:!0,skipEmptyLines:!0,header:!0,dynamicTyping:!0,worker:!1,comments:"#",complete:function(n){angular.isDefined(n.data)?(e.view.loadedFileName=p(i),o=I(n.data,t.EXCLUDE_FIELDS),n.data.splice(0,t.HEADER_SKIPPED_ROWS),w(n.data)):S("An error occurred when attempting to download file.","danger"),e.view.loading=!1,e.$apply()},error:function(i){e.view.loading=!1,S("Could not download file.","danger")}})},m=function(i){c(),Papa.RemoteChunkSize=t.REMOTE_CHUNK_SIZE;Papa.parse(i,{download:!0,skipEmptyLines:!0,header:!0,dynamicTyping:!0,worker:!1,comments:"#",chunk:function(e,i){u=i,w(e.data)},beforeFirstChunk:function(n){e.view.loadedFileName=p(i);var a=n.split(/\r\n|\r|\n/);return o=I(a,t.EXCLUDE_FIELDS),a.splice(1,t.HEADER_SKIPPED_ROWS),e.view.loading=!1,a=a.join("\n")},error:function(i){S("Could not stream file.","danger"),e.view.loading=!1}})},E=function(i){c(),Papa.LocalChunkSize=t.LOCAL_CHUNK_SIZE;Papa.parse(i,{skipEmptyLines:!0,header:!0,dynamicTyping:!0,worker:!1,comments:"#",chunk:function(e,i){u=i,w(e.data)},beforeFirstChunk:function(n){e.view.loadedFileName=i.name;var a=n.split(/\r\n|\r|\n/);return o=I(a,t.EXCLUDE_FIELDS),a.splice(1,t.HEADER_SKIPPED_ROWS),e.view.loading=!1,a=a.join("\n")},error:function(i){S(i,"danger"),e.view.loading=!1}})},S=function(i,n,t){if(t="undefined"!=typeof t?t:!1,exists=!1,t){errs=e.view.errors;for(var a=0;a<errs.length;a++)if(errs[a].message===i)return}e.view.errors.push({message:i,type:n}),e.$apply()};e.clearErrors=function(){e.view.errors.length=0},e.clearError=function(i){e.view.errors.splice(i,1)};var b=function(e){var i=new Date(e);if("Invalid Date"!==i.toString())return i;var n=String(e).split(" "),t=[],a=n[0].split("/"),l=n[0].split("-");if(1===a.length&&1===l.length||a.length>1&&l.length>1)return S("Could not parse the timestamp: "+e,"warning",!0),null;if(l.length>2)t.push(l[0]),t.push(l[1]),t.push(l[2]);else{if(!(a.length>2))return S("There was something wrong with the date in the timestamp field.","warning",!0),null;t.push(a[2]),t.push(a[0]),t.push(a[1])}if(n[1]){var o=n[1].split(":");t=t.concat(o)}for(var r=0;r<t.length;r++)t[r]=parseInt(t[r]);return i=new Function.prototype.bind.apply(Date,[null].concat(t)),"Invalid Date"===i.toString()?(S("The timestamp appears to be invalid.","warning",!0),null):i};e.normalizeField=function(i){var n=i+1;if(null===e.view.dataField)return void console.warn("No data field is set");for(var t=parseInt(e.view.dataField)+1,a=function(e,i){return Math[i].apply(null,e)},o=[],r=[],d=0;d<l.length;d++)"number"==typeof l[d][t]&&"number"==typeof l[d][n]&&(o.push(l[d][t]),r.push(l[d][n]));for(var s=a(o,"max")-a(o,"min"),g=a(r,"max")-a(r,"min"),h=s/g,u=0;u<l.length;u++)l[u][n]=parseFloat((l[u][n]*h).toFixed(10));e.view.graph.updateOptions({file:l})},e.denormalizeField=function(i){for(var n=i+1,t=0;t<l.length;t++)l[t][n]=r[t][n];e.view.graph.updateOptions({file:l})},e.renormalize=function(){for(var i=0;i<e.view.fieldState.length;i++)e.view.fieldState[i].normalized&&e.normalizeField(e.view.fieldState[i].id)};var y=function(i,n){for(var t=0;t<e.view.fieldState.length;t++)if(e.view.fieldState[t].name===i){e.view.fieldState[t].value=n;break}},F=function(i){for(var n=0;n<i.length;n++)e.view.fieldState[n].color=i[n]},I=function(e,i){for(var n=e[0].split(","),a=Papa.parse(e[2],{dynamicTyping:!0,skipEmptyLines:!0,comments:"#"}).data[0],l=!0,o=0;o<a.length;o++)"number"==typeof a[o]?l=!1:("R"===a[o]||"r"===a[o])&&(h=o);l&&(console.log("Detected OPF/NuPIC file. "),t.HEADER_SKIPPED_ROWS=3),-1===n.indexOf(t.TIMESTAMP)?(S("No timestamp field was found, using iterations instead","info"),s=!0):l&&-1!==h&&(S("OPF file with resets not supported. Ignoring timestamp and using iterations instead.","info"),s=!0);var r=e[e.length-2];r=Papa.parse(r,{dynamicTyping:!0,skipEmptyLines:!0,comments:"#"});for(var d=[],g=0;g<n.length;g++){var u=r.data[0][g],f=n[g];"number"==typeof u&&-1===i.indexOf(f)&&d.push(f)}return-1===d.indexOf(t.TIMESTAMP)&&d.unshift(t.TIMESTAMP),d};e.toggleVisibility=function(i){e.view.graph.setVisibility(i.id,i.visible),i.visible||(i.value=null)},e.showHideAll=function(i){for(var n=0;n<e.view.fieldState.length;n++)e.view.fieldState[n].visible=i,e.view.graph.setVisibility(e.view.fieldState[n].id,i),i||(e.view.fieldState[n].value=null)},e.updateHighlight=function(i){null!==i.highlightThreshold&&(""===i.highlightThreshold&&(i.highlightThreshold=null),e.view.graph.updateOptions({}))};var P=function(){var i=document.getElementById("dataContainer");e.view.fieldState.length=0,e.view.dataField=null;for(var n=0,r=s,d=0;d<o.length;d++){var g=o[d];g===t.TIMESTAMP||r?r=!1:(e.view.fieldState.push({name:g,id:n,visible:!0,normalized:!1,value:null,color:"rgb(0,0,0)",highlighted:!1,highlightThreshold:null}),n++)}e.view.graph=new Dygraph(i,l,{labels:o,labelsUTC:!1,showLabelsOnHighlight:!0,xlabel:"Time",ylabel:"Values",strokeWidth:1,sigFigs:5,pointClickCallback:function(e,i){timestamp=moment(i.xval),timestampString=timestamp.format("YYYY-MM-DD HH:mm:ss.SSS000"),window.prompt("Copy to clipboard: Ctrl+C, Enter",timestampString)},animatedZooms:!0,showRangeSelector:"RangeSelector"===t.ZOOM,highlightCallback:function(i,n,t,a,l){for(var o=0;o<t.length;o++)y(t[o].name,t[o].yval);e.$apply()},drawCallback:function(e,i){i&&F(e.getColors())},underlayCallback:a})};e.$on("$destroy",function(){angular.forEach(d,function(e){n.cancel(e)})})}]),angular.module("app").directive("fieldOptions",function(){return{restrict:"A",scope:!1,template:'<td style="color:{{field.color}};"><div class="span-wrapper" uib-popover="{{field.name}}" popover-trigger="mouseenter" popover-animation="false"><span>{{field.name}}</span></div></td><td><input type="checkbox" ng-model="field.visible" ng-click="toggleVisibility(field)"></td><td><input type="checkbox" ng-model="field.highlighted" ng-click="updateHighlight(field)"></td><td><input type="text" class="form-control input-sm" ng-model="field.highlightThreshold" highlight-field="field" highlight-fn="updateHighlight"></td><td><input type="checkbox" ng-disabled="field.id === view.dataField || view.dataField === null" ng-model="field.normalized"></td><td><input type="radio" ng-disabled="field.normalized" ng-model="view.dataField" ng-value="{{field.id}}"></td>',link:function(e,i,n){var t={};t.normalized=e.$watch("field.normalized",function(i,n){i?e.normalizeField(e.field.id):i||i===n||e.denormalizeField(e.field.id)}),t.isData=e.$watch("view.dataField",function(){e.renormalize()}),e.$on("$destroy",function(){angular.forEach(t,function(e){e()})})}}}),angular.module("app").directive("fileUploadChange",function(){return{restrict:"A",link:function(e,i,n){var t=e.$eval(n.fileUploadChange);i.on("change",t);var a=e.$on("fileUploadChange",function(){angular.element(i).val(null)});e.$on("$destroy",function(){i.off(),a()})}}}),angular.module("app").directive("highlightField",[function(){return{restrict:"A",scope:{highlightFn:"=",highlightField:"="},link:function(e,i,n){i.bind("keyup",function(i){e.highlightFn(e.highlightField)}),e.$on("$destroy",function(){i.unbind("keyup")})}}}]),angular.module("app").filter("bytes",function(){return function(e,i){if(isNaN(parseFloat(e))||!isFinite(e))return"-";"undefined"==typeof i&&(i=1);var n=["bytes","kB","MB","GB","TB","PB"],t=Math.floor(Math.log(e)/Math.log(1024));return(e/Math.pow(1024,Math.floor(t))).toFixed(i)+" "+n[t]}});
\ No newline at end of file
+angular.module("app",["ui.bootstrap"]),angular.module("app").constant("appConfig",{TIMESTAMP:"timestamp",EXCLUDE_FIELDS:[],HEADER_SKIPPED_ROWS:1,ZOOM:"HighlightSelector",NONE_VALUE_REPLACEMENT:0,WINDOW_SIZE:1e4,MAX_FILE_SIZE:62914560,LOCAL_CHUNK_SIZE:65536,REMOTE_CHUNK_SIZE:65536,HIGHLIGHT_RADIUS:10}),angular.module("app").controller("appCtrl",["$scope","$http","$timeout","appConfig",function(e,i,n,t){function a(i,n,a){function d(e,t,l){var o=a.toDomXCoord(e),r=a.toDomXCoord(t),d=r-o;i.fillStyle=l,i.fillRect(o,n.y,d,n.h)}function s(e,i,n){var t=[],a=o.indexOf(i);if(-1===a)return S("Highlighting cannot work, field "+i+" not found!","danger",!0),[];for(var l=0;l<e.length;l++){var r=e[l][a];if(r>=n){var d=e[l][g];t.push(d)}}return t}for(var g=o.indexOf(t.TIMESTAMP),h=0;h<e.view.fieldState.length;h++){var u,f,p,w;if(w=e.view.fieldState[h],w.highlighted===!0&&null!==w.highlightThreshold){u=s(r,w.name,w.highlightThreshold),f=.01*l.length;var c=.4;p=w.color.replace("rgb","rgba").replace(")",","+c+")");for(var v=-1,m=0;m<u.length;m++)u[m]-f>=v&&(d(u[m]-f,u[m]+f,p),v=u[m]+f)}}}e.view={fieldState:[],graph:null,dataField:null,optionsVisible:!0,filePath:"",loadedFileName:"",errors:[],loading:!1,windowing:{threshold:t.MAX_FILE_SIZE,size:-1,show:!1,paused:!1,aborted:!1,update_interval:1}};var l=[],o=[],r=[],d={},s=!1,g=0,h=-1,u=null,f=!1;e.toggleOptions=function(){e.view.optionsVisible=!e.view.optionsVisible,e.view.graph&&(d.resize=n(function(){e.view.graph.resize()}))},e.getRemoteFile=function(){e.view.windowing.show=!1,e.view.windowing.paused=!1,e.view.windowing.aborted=!1,e.$broadcast("fileUploadChange"),e.view.loading=!0,i.head(e.view.filePath,{headers:{Range:"bytes=0-32"}}).then(function(n){206===n.status?i.head(e.view.filePath).then(function(i){var n=i.headers("Content-Length");n>e.view.windowing.threshold&&-1!==e.view.windowing.threshold&&(e.view.windowing.show=!0,e.view.windowing.size=t.WINDOW_SIZE,S("File too large, automatic sliding window enabled.","warning")),m(e.view.filePath)}):v(e.view.filePath)},function(){v(e.view.filePath)})},e.canDownload=function(){var i=e.view.filePath.split("://");return("https"===i[0]||"http"===i[0])&&i.length>1&&i[1].length>0?!0:!1},e.abortParse=function(){angular.isDefined(u)&&angular.isDefined(u.abort)&&(u.abort(),e.view.windowing.paused=!1,e.view.windowing.aborted=!0)},e.pauseParse=function(){angular.isDefined(u)&&angular.isDefined(u.pause)&&(u.pause(),e.view.windowing.paused=!0)},e.resumeParse=function(){angular.isDefined(u)&&angular.isDefined(u.resume)&&(u.resume(),e.view.windowing.paused=!1)},e.getLocalFile=function(i){e.view.filePath=i.target.files[0].name,i.target.files[0].size>e.view.windowing.threshold&&-1!==e.view.windowing.threshold&&(e.view.windowing.show=!0,e.view.windowing.size=t.WINDOW_SIZE,S("File too large, automatic sliding window enabled.","warning")),e.view.loading=!0,E(i.target.files[0])};var p=function(e){var i=e.split("/");return i[i.length-1]},w=function(i){for(var n=-1,a=0;a<i.length;a++){for(var d=[],u=0;u<o.length;u++){var p=o[u],w=i[a][p];if(p===t.TIMESTAMP){if(g++,s?w=g:"number"==typeof w||("string"==typeof w&&null!==b(w)?w=b(w):(S("Parsing timestamp failed, fallback to using iteration number","warning",!0),w=g)),n>=w&&1!==i[a][h]){S("Your time is not monotonic at row "+g+"! Graphs are incorrect.","danger",!1),console.log("Incorrect timestamp!");break}n=w}else"None"===w&&(w=t.NONE_VALUE_REPLACEMENT);d.push(w)}d.length===o.length?(l.push(d),r.push(angular.extend([],d)),-1!==e.view.windowing.size&&l.length>e.view.windowing.size&&(l.shift(),r.shift())):console.log("Incomplete row loaded "+d+"; skipping.")}null===e.view.graph?P():g%e.view.windowing.update_interval===0&&e.view.graph.updateOptions({file:l}),f||(e.$apply(),f=!0)},c=function(){e.view.fieldState.length=0,e.view.graph=null,e.view.dataField=null,e.view.errors.length=0,e.view.loadedFileName="",s=!1,g=0,l.length=0,o.length=0,f=!1},v=function(i){c(),Papa.parse(i,{download:!0,skipEmptyLines:!0,header:!0,dynamicTyping:!0,worker:!1,comments:"#",complete:function(n){angular.isDefined(n.data)?(e.view.loadedFileName=p(i),o=I(n.data,t.EXCLUDE_FIELDS),n.data.splice(0,t.HEADER_SKIPPED_ROWS),w(n.data)):S("An error occurred when attempting to download file.","danger"),e.view.loading=!1,e.$apply()},error:function(i){e.view.loading=!1,S("Could not download file.","danger")}})},m=function(i){c(),Papa.RemoteChunkSize=t.REMOTE_CHUNK_SIZE;Papa.parse(i,{download:!0,skipEmptyLines:!0,header:!0,dynamicTyping:!0,worker:!1,comments:"#",chunk:function(e,i){u=i,w(e.data)},beforeFirstChunk:function(n){e.view.loadedFileName=p(i);var a=n.split(/\r\n|\r|\n/);return o=I(a,t.EXCLUDE_FIELDS),a.splice(1,t.HEADER_SKIPPED_ROWS),e.view.loading=!1,a=a.join("\n")},error:function(i){S("Could not stream file.","danger"),e.view.loading=!1}})},E=function(i){c(),Papa.LocalChunkSize=t.LOCAL_CHUNK_SIZE;Papa.parse(i,{skipEmptyLines:!0,header:!0,dynamicTyping:!0,worker:!1,comments:"#",chunk:function(e,i){u=i,w(e.data)},beforeFirstChunk:function(n){e.view.loadedFileName=i.name;var a=n.split(/\r\n|\r|\n/);return o=I(a,t.EXCLUDE_FIELDS),a.splice(1,t.HEADER_SKIPPED_ROWS),e.view.loading=!1,a=a.join("\n")},error:function(i){S(i,"danger"),e.view.loading=!1}})},S=function(i,n,t){if(t="undefined"!=typeof t?t:!1,exists=!1,t){errs=e.view.errors;for(var a=0;a<errs.length;a++)if(errs[a].message===i)return}e.view.errors.push({message:i,type:n}),e.$apply()};e.clearErrors=function(){e.view.errors.length=0},e.clearError=function(i){e.view.errors.splice(i,1)};var b=function(e){var i=new Date(e);if("Invalid Date"!==i.toString())return i;var n=String(e).split(" "),t=[],a=n[0].split("/"),l=n[0].split("-");if(1===a.length&&1===l.length||a.length>1&&l.length>1)return S("Could not parse the timestamp: "+e,"warning",!0),null;if(l.length>2)t.push(l[0]),t.push(l[1]),t.push(l[2]);else{if(!(a.length>2))return S("There was something wrong with the date in the timestamp field.","warning",!0),null;t.push(a[2]),t.push(a[0]),t.push(a[1])}if(n[1]){var o=n[1].split(":");t=t.concat(o)}for(var r=0;r<t.length;r++)t[r]=parseInt(t[r]);return i=new Function.prototype.bind.apply(Date,[null].concat(t)),"Invalid Date"===i.toString()?(S("The timestamp appears to be invalid.","warning",!0),null):i};e.normalizeField=function(i){var n=i+1;if(null===e.view.dataField)return void console.warn("No data field is set");for(var t=parseInt(e.view.dataField)+1,a=function(e,i){return Math[i].apply(null,e)},o=[],r=[],d=0;d<l.length;d++)"number"==typeof l[d][t]&&"number"==typeof l[d][n]&&(o.push(l[d][t]),r.push(l[d][n]));for(var s=a(o,"max")-a(o,"min"),g=a(r,"max")-a(r,"min"),h=s/g,u=0;u<l.length;u++)l[u][n]=parseFloat((l[u][n]*h).toFixed(10));e.view.graph.updateOptions({file:l})},e.denormalizeField=function(i){for(var n=i+1,t=0;t<l.length;t++)l[t][n]=r[t][n];e.view.graph.updateOptions({file:l})},e.renormalize=function(){for(var i=0;i<e.view.fieldState.length;i++)e.view.fieldState[i].normalized&&e.normalizeField(e.view.fieldState[i].id)};var y=function(i,n){for(var t=0;t<e.view.fieldState.length;t++)if(e.view.fieldState[t].name===i){e.view.fieldState[t].value=n;break}},F=function(i){for(var n=0;n<i.length;n++)e.view.fieldState[n].color=i[n]},I=function(e,i){for(var n=e[0].split(","),a=Papa.parse(e[2],{dynamicTyping:!0,skipEmptyLines:!0,comments:"#"}).data[0],l=!0,o=0;o<a.length;o++)"number"==typeof a[o]?l=!1:("R"===a[o]||"r"===a[o])&&(h=o);l&&(console.log("Detected OPF/NuPIC file. "),t.HEADER_SKIPPED_ROWS=3),-1===n.indexOf(t.TIMESTAMP)?(S("No timestamp field was found, using iterations instead","info"),s=!0):l&&-1!==h&&(S("OPF file with resets not supported. Ignoring timestamp and using iterations instead.","info"),s=!0);var r=e[e.length-2];r=Papa.parse(r,{dynamicTyping:!0,skipEmptyLines:!0,comments:"#"});for(var d=[],g=0;g<n.length;g++){var u=r.data[0][g],f=n[g];"number"==typeof u&&-1===i.indexOf(f)&&d.push(f)}return-1===d.indexOf(t.TIMESTAMP)&&d.unshift(t.TIMESTAMP),d};e.toggleVisibility=function(i){e.view.graph.setVisibility(i.id,i.visible),i.visible||(i.value=null)},e.showHideAll=function(i){for(var n=0;n<e.view.fieldState.length;n++)e.view.fieldState[n].visible=i,e.view.graph.setVisibility(e.view.fieldState[n].id,i),i||(e.view.fieldState[n].value=null)},e.updateHighlight=function(i){null!==i.highlightThreshold&&(""===i.highlightThreshold&&(i.highlightThreshold=null),e.view.graph.updateOptions({}))};var P=function(){var i=document.getElementById("dataContainer");e.view.fieldState.length=0,e.view.dataField=null;for(var n=0,r=s,d=0;d<o.length;d++){var g=o[d];g===t.TIMESTAMP||r?r=!1:(e.view.fieldState.push({name:g,id:n,visible:!0,normalized:!1,value:null,color:"rgb(0,0,0)",highlighted:!1,highlightThreshold:null}),n++)}e.view.graph=new Dygraph(i,l,{labels:o,labelsUTC:!1,showLabelsOnHighlight:!0,xlabel:"Time",ylabel:"Values",strokeWidth:1,sigFigs:5,pointClickCallback:function(e,i){timestamp=moment(i.xval),timestampString=timestamp.format("YYYY-MM-DD HH:mm:ss.SSS000"),window.prompt("Copy to clipboard: Ctrl+C, Enter",timestampString)},animatedZooms:!0,showRangeSelector:"RangeSelector"===t.ZOOM,highlightCallback:function(i,n,t,a,l){for(var o=0;o<t.length;o++)y(t[o].name,t[o].yval);e.$apply()},drawCallback:function(e,i){i&&F(e.getColors())},underlayCallback:a})};e.$on("$destroy",function(){angular.forEach(d,function(e){n.cancel(e)})})}]),angular.module("app").directive("fieldOptions",function(){return{restrict:"A",scope:!1,template:'<td style="color:{{field.color}};"><div class="span-wrapper" uib-popover="{{field.name}}" popover-trigger="mouseenter" popover-animation="false"><span>{{field.name}}</span></div></td><td><input type="checkbox" ng-model="field.visible" ng-click="toggleVisibility(field)"></td><td><input type="checkbox" ng-model="field.highlighted" ng-click="updateHighlight(field)"></td><td><input type="text" class="form-control input-sm" ng-model="field.highlightThreshold" highlight-field="field" highlight-fn="updateHighlight"></td><td><input type="checkbox" ng-disabled="field.id === view.dataField || view.dataField === null" ng-model="field.normalized"></td><td><input type="radio" ng-disabled="field.normalized" ng-model="view.dataField" ng-value="{{field.id}}"></td>',link:function(e,i,n){var t={};t.normalized=e.$watch("field.normalized",function(i,n){i?e.normalizeField(e.field.id):i||i===n||e.denormalizeField(e.field.id)}),t.isData=e.$watch("view.dataField",function(){e.renormalize()}),e.$on("$destroy",function(){angular.forEach(t,function(e){e()})})}}}),angular.module("app").directive("fileUploadChange",function(){return{restrict:"A",link:function(e,i,n){var t=e.$eval(n.fileUploadChange);i.on("change",t);var a=e.$on("fileUploadChange",function(){angular.element(i).val(null)});e.$on("$destroy",function(){i.off(),a()})}}}),angular.module("app").directive("highlightField",[function(){return{restrict:"A",scope:{highlightFn:"=",highlightField:"="},link:function(e,i,n){i.bind("keyup",function(i){e.highlightFn(e.highlightField)}),e.$on("$destroy",function(){i.unbind("keyup")})}}}]),angular.module("app").filter("bytes",function(){return function(e,i){if(isNaN(parseFloat(e))||!isFinite(e))return"-";"undefined"==typeof i&&(i=1);var n=["bytes","kB","MB","GB","TB","PB"],t=Math.floor(Math.log(e)/Math.log(1024));return(e/Math.pow(1024,Math.floor(t))).toFixed(i)+" "+n[t]}});
diff --git a/build/index.html b/build/index.html
index da35425..6383827 100644
--- a/build/index.html
+++ b/build/index.html
@@ -28,11 +28,11 @@
                 <div class="input-group">
                   <input type="text" class="form-control file-name" ng-model="view.filePath">
                   <span class="input-group-btn">
-                    <button class="btn btn-default" type="button" ng-disabled="!canDownload()" ng-click="getRemoteFile()">Download</button>
+                    <button class="btn btn-default" type="button" ng-disabled="!canDownload()" ng-click="loadFile(null)">Download</button>
                   </span>
                 </div>
                 <span class="btn btn-primary btn-file">
-                  Browse&hellip; <input type="file" file-upload-change="getLocalFile">
+                  Browse&hellip; <input type="file" file-upload-change="loadFile">
                 </span>
                 <div class="errors">
                   <div ng-repeat="error in view.errors track by $index" class="alert alert-{{error.type}} alert-dismissible" role="alert">
diff --git a/client/src/app/appConfig.js b/client/src/app/appConfig.js
index 1e6246d..386b4d0 100644
--- a/client/src/app/appConfig.js
+++ b/client/src/app/appConfig.js
@@ -32,11 +32,18 @@ angular.module('app').constant('appConfig', {
   // -1 to disable the functionality (can cause performance problems on large files/online monitoring)
   MAX_FILE_SIZE : 60*1024*1024,
   // LOCAL_CHUNK_SIZE:
+  // in Bytes
   // size in bytes of each chunk for the data stream, when reading local files
-  LOCAL_CHUNK_SIZE : 65536,
+  LOCAL_CHUNK_SIZE : 2*1024*1024,
   // REMOTE_CHUNK_SIZE:
-  // size in bytes of each chunk for the data stream, when reading files over a network. Not currently used.
+  // in Bytes
+  // size in bytes of each chunk for the data stream, when reading files over a network.
   REMOTE_CHUNK_SIZE : 65536,
+  // POLLING_INTERVAL:
+  // time interval (in ms) after which the source file is re-read to find possible updates. 
+  // A value <= 0 means polling is disabled - nothing else happens after the end of the file is reached. 
+  // Default: 0
+  POLLING_INTERVAL : 5000,
   // HIGHLIGHT_RADIUS:
   // radius of threshold highlight from point in time that reaches the threshold.
   // modifies (together with color/opacity) how visible the highlight is.
diff --git a/client/src/app/appCtrl.js b/client/src/app/appCtrl.js
index 5af99d0..94fed12 100644
--- a/client/src/app/appCtrl.js
+++ b/client/src/app/appCtrl.js
@@ -1,6 +1,6 @@
 // Web UI:
 
-angular.module('app').controller('appCtrl', ['$scope', '$http', '$timeout', 'appConfig', function($scope, $http, $timeout, appConfig) {
+angular.module('app').controller('appCtrl', ['$scope', '$http', '$timeout', 'appConfig', '$interval', function($scope, $http, $timeout, appConfig, $interval) {
 
   $scope.view = {
     fieldState: [],
@@ -11,14 +11,28 @@ angular.module('app').controller('appCtrl', ['$scope', '$http', '$timeout', 'app
     loadedFileName: "",
     errors: [],
     loading: false,
-    windowing: {
-      threshold: appConfig.MAX_FILE_SIZE,
-      size: -1, // changed to WINDOW_SIZE on 'windowing' / large files. //TODO add UI for this?
-      show: false,
-      paused: false,
-      aborted: false,
-      update_interval: 1, //FIXME Math.round(appConfig.WINDOW_SIZE / 10.0), //every N rows render (10% change)
-    }
+    windowing : {
+      threshold : appConfig.MAX_FILE_SIZE,
+      size : -1, // changed to WINDOW_SIZE on 'windowing' / large files. //TODO add UI for this?
+      show : false,
+      paused : false,
+      aborted : false,
+      update_interval : 1, //FIXME Math.round(appConfig.WINDOW_SIZE / 10.0), //every N rows render (10% change)
+    }, 
+    monitor : { // online monitoring
+      clock : undefined, // the function in setIteration
+      interval : 0, // dT
+      lastChunkIter : 0, // helper, for speed we render only chunks with iter>last
+    },
+    file : { // info about the input file
+      size : 0, //getFileSize sets
+      file : null,
+      name : null,
+      path : null,
+      loadingInProgress : false, // set true on start of file loading
+      local : true, //canDownload
+      streaming: false, //canDownload sets
+    },
   };
 
   var loadedCSV = [],
@@ -42,47 +56,132 @@ angular.module('app').controller('appCtrl', ['$scope', '$http', '$timeout', 'app
     }
   };
 
-  $scope.getRemoteFile = function() {
-    $scope.view.windowing.show = false;
-    $scope.view.windowing.paused = false;
-    $scope.view.windowing.aborted = false;
-    $scope.$broadcast("fileUploadChange");
+  // main "load" function that supports both URL/local file
+  // takes care of monitoring/streaming-data plots: if appConfig.POLLING_INTERVAL > 0 keep polling the file,sleeping
+  $scope.loadFile = function(event) {
+    // react to the file-selector event
+    var src = $scope.view.file.path;
+    if (event !== null) {
+      $scope.view.file.file = event.target.files[0];
+      $scope.view.file.name = $scope.view.file.file.name;
+      $scope.view.file.path = event.target.files[0].name;
+      $scope.view.filePath = $scope.view.file.path; //TODO remove this
+      src = $scope.view.file.file;
+    }
+    loadFile(src);
+    setMonitoringTimer(appConfig.POLLING_INTERVAL, src); //FIXME create an entry element for numeric value in UI for this, each change should call setMonitoringTimer()
+  };
+
+  // set up interval for cuntinuous monotoring/timer
+  // param interval: in ms, <=0 means disabled
+  // do not start parallel timers, clear existing (and optionally set new)
+  var setMonitoringTimer = function(interval, src) {
+    if (angular.isDefined($scope.view.monitor.clock) || interval <= 0) { //disable the old one
+      $interval.cancel($scope.view.monitor.clock); //invalidate 
+      $scope.view.monitor.clock = undefined;
+      $scope.view.monitor.interval = 0;
+    }
+
+    if (interval > 0) {
+      handleError("Monitoring mode started, update interval "+appConfig.POLLING_INTERVAL+"ms. ", "warning",true);
+      $scope.view.monitor.interval = interval;
+      $scope.view.monitor.clock = $interval(function () {loadFile(src); console.log("updating...");}, $scope.view.monitor.interval); //FIXME work with remote too
+    }
+  };
+
+  // helper fn for timer/monitoring in loadFile
+  // param file = File (for local), or string filePath for remote
+  var loadFile = function(file) {
+    if ($scope.view.file.loadingInProgress) {
+      console.log("File was not completely read yet, cancelling another re-read till done!");
+      return;
+    }
+    $scope.view.file.loadingInProgress = true;
     $scope.view.loading = true;
-    // we do a quick test here to see if the server supports the Range header.
-    // If so, we try to stream. If not, we try to download.
-    $http.head($scope.view.filePath, {
-      'headers': {
-        'Range': 'bytes=0-32'
-      }
-    }).then(function(response) {
-      if (response.status === 206) {
-        // now we check to see how big the file is
-        $http.head($scope.view.filePath).then(function(response) {
-          var contentLength = response.headers('Content-Length');
-          if (contentLength > $scope.view.windowing.threshold && $scope.view.windowing.threshold !== -1) {
-            $scope.view.windowing.show = true;
-            $scope.view.windowing.size = appConfig.WINDOW_SIZE;
-            handleError("File too large, automatic sliding window enabled.", "warning");
-          }
-          streamRemoteFile($scope.view.filePath);
-        });
+    // will set the local file= true/false, promise //FIXME use all() to combine 2 promises
+    $scope.canDownload().then(
+      function () {getFileSize(file).then(function () {doThis();}, function () {console.log("FAIL 2");} );}, 
+      function () {console.log("FAIL");});
+
+    function doThis() { //just wrapper
+      $scope.view.windowing.show = false;
+      $scope.view.windowing.paused = false;
+      $scope.view.windowing.aborted = false;
+      $scope.$broadcast("fileUploadChange");
+      console.log("File size "+$scope.view.file.size);
+      if ($scope.view.file.size > $scope.view.windowing.threshold && $scope.view.windowing.threshold !== -1) {
+        $scope.view.windowing.show = true;
+        $scope.view.windowing.size = appConfig.WINDOW_SIZE;
+        handleError("File too large, automatic sliding window enabled.", "warning");
+
+        if ($scope.view.file.streaming) {
+          console.log("streamig...");
+          downloadFile(file, "streamRemote");
+        } else if ($scope.view.file.local) {
+          downloadFile(file, "streamLocal");
+        }
       } else {
-        downloadFile($scope.view.filePath);
+        downloadFile(file, "download"); // fallback, or small file
       }
-    }, function() {
-      downloadFile($scope.view.filePath);
-    });
+    } //end doThis
   };
 
+
+  // test if a remote file can be downloaded.
+  // "disables" the download button in UI
+  // A file can be downloaded if: 1. is a URL; 2. server supports "Range" header;
+  // also sets file.local, file.streaming ; as a promise 
   $scope.canDownload = function() {
     var pathParts = $scope.view.filePath.split("://");
     if ((pathParts[0] === "https" || pathParts[0] === "http") && pathParts.length > 1 && pathParts[1].length > 0) {
-      return true;
-    } else {
+      $scope.view.file.local = false;
+      // we do a quick test here to see if the server supports the Range header.
+      // If so, we try to stream. If not, we try to download.
+      $http.head($scope.view.filePath,{'headers' : {'Range' : 'bytes=0-32'}}).then(
+        function(response){ 
+          if(response.status === 206) { 
+            console.log("server supports remote streaming");
+            $scope.view.file.streaming = true;
+            return true; 
+          } else { 
+            handleError("Server does not support remote file streaming. (Missing Range HTTP header).", "danger", true);
+            $scope.view.file.streaming = false;
+            return false; 
+          } 
+        },
+        function() {
+            $scope.view.file.streaming = false;
+            return false;
+       }); 
+    } else { // not a remote URL
+      $scope.view.file.local = true;
+      $scope.view.file.streaming = true; //FIXME should here on local be streaming?
       return false;
     }
   };
 
+  // get size of a file
+  // param file - local File object, or URL(string) to a remote file
+  // return number (as a promise!)
+  var getFileSize = function(file) {
+    if (typeof(file)=="object") { // intentionally not ===
+      $scope.view.file.size = file.size;
+      return file.size;
+    } else {
+      $http.head(file).then(
+        function(response){
+          $scope.view.file.size = response.headers('Content-Length');
+          return response.headers('Content-Length');
+        }, 
+        function() {
+         handleError("Failed to get remote file's size", "danger", true);
+         $scope.view.file.size = -1;
+         return -1;
+        }
+      );
+    }
+  };
+
   $scope.abortParse = function() {
     if (angular.isDefined(streamParser) && angular.isDefined(streamParser.abort)) {
       streamParser.abort();
@@ -105,23 +204,14 @@ angular.module('app').controller('appCtrl', ['$scope', '$http', '$timeout', 'app
     }
   };
 
-  $scope.getLocalFile = function(event) {
-    $scope.view.filePath = event.target.files[0].name;
-    if (event.target.files[0].size > $scope.view.windowing.threshold && $scope.view.windowing.threshold !== -1) {
-      $scope.view.windowing.show = true;
-      $scope.view.windowing.size = appConfig.WINDOW_SIZE;
-      handleError("File too large, automatic sliding window enabled.", "warning");
-    }
-    $scope.view.loading = true;
-    streamLocalFile(event.target.files[0]);
-  };
-
   var getRemoteFileName = function(url) {
     var pathParts = url.split("/");
     return pathParts[pathParts.length - 1];
   };
 
+ 
   var loadData = function(data) {
+    console.log("SLOW");
     var tmpTime = -1;
     for (var rowId = 0; rowId < data.length; rowId++) {
       var row = [];
@@ -199,8 +289,13 @@ angular.module('app').controller('appCtrl', ['$scope', '$http', '$timeout', 'app
     firstDataLoaded = false;
   };
 
-  var downloadFile = function(url) {
+  // function to "download" a file, 
+  // with param. 'mode': "download","streamLocal","streamRemote"
+  var downloadFile = function(url, mode) {
     resetFields();
+    Papa.RemoteChunkSize = appConfig.REMOTE_CHUNK_SIZE;
+    Papa.LocalChunkSize = appConfig.LOCAL_CHUNK_SIZE; // set this to a reasonable size
+    var iter = 0;
     Papa.parse(url, {
       download: true,
       skipEmptyLines: true,
@@ -208,7 +303,14 @@ angular.module('app').controller('appCtrl', ['$scope', '$http', '$timeout', 'app
       dynamicTyping: true,
       worker: false, // multithreaded, !but does NOT work with other libs in app.js or streaming
       comments: "#",
+      // used for 'download' mode
       complete: function(results) {
+        console.log("COMPLETED");
+        $scope.view.monitor.lastChunkIter = iter;
+        $scope.view.file.loadingInProgress = false; //completed
+        if (mode !== "download") {
+          return;
+        }
         if (!angular.isDefined(results.data)) {
           handleError("An error occurred when attempting to download file.", "danger");
         } else {
@@ -220,62 +322,35 @@ angular.module('app').controller('appCtrl', ['$scope', '$http', '$timeout', 'app
         $scope.view.loading = false;
         $scope.$apply();
       },
-      error: function(error) {
-        $scope.view.loading = false;
-        handleError("Could not download file.", "danger");
-      }
-    });
-  };
 
-  var streamRemoteFile = function(url) {
-    resetFields();
-    Papa.RemoteChunkSize = appConfig.REMOTE_CHUNK_SIZE;
-    var firstChunkComplete = false;
-    Papa.parse(url, {
-      download: true,
-      skipEmptyLines: true,
-      header: true,
-      dynamicTyping: true,
-      worker: false, // multithreaded, !but does NOT work with other libs in app.js or streaming
-      comments: "#",
+      // used for 'stream*' mode
       chunk: function(chunk, parser) {
+        iter++;
         streamParser = parser;
-        loadData(chunk.data);
-      },
-      beforeFirstChunk: function(chunk) {
-        $scope.view.loadedFileName = getRemoteFileName(url);
-        var rows = chunk.split(/\r\n|\r|\n/);
-        loadedFields = generateFieldMap(rows, appConfig.EXCLUDE_FIELDS);
-        rows.splice(1, appConfig.HEADER_SKIPPED_ROWS);
-        $scope.view.loading = false;
-        rows = rows.join('\n');
-        return rows;
-      },
-      //fastMode: true, // automatically enabled if no " appear
-      error: function(error) {
-        handleError("Could not stream file.", "danger");
-        $scope.view.loading = false;
-      }
-    });
-  };
 
-  // read and parse a CSV file
-  var streamLocalFile = function(file) {
-    resetFields();
-    Papa.LocalChunkSize = appConfig.LOCAL_CHUNK_SIZE; // set this to a reasonable size
-    var firstChunkComplete = false;
-    Papa.parse(file, {
-      skipEmptyLines: true,
-      header: true,
-      dynamicTyping: true,
-      worker: false, // multithreaded, !but does NOT work with other libs in app.js or streaming
-      comments: "#",
-      chunk: function(chunk, parser) {
-        streamParser = parser;
-        loadData(chunk.data);
+        // as files grow very large in continuous monitoring
+        // for speed reasons (on large files) in the online monitor mode, 
+        // we skip renderning all but the last window
+        // this technique only helps after the file was once read to the end (completed)
+        if(iter <= $scope.view.monitor.lastChunkIter && iter > 1) {
+          console.log("Skipping: iter "+iter+" < = "+$scope.view.monitor.lastChunkIter);
+          return;
+        } else if (iter*appConfig.LOCAL_CHUNK_SIZE + 10*appConfig.LOCAL_CHUNK_SIZE < $scope.view.file.size) { //FIXME how ensure the safety buffer (10*XX) 
+        // ...from CHUNK_SIZE (B) responds to BUFFER_SIZE (rows)
+          console.log("Skipping 2: iter "+iter+", bytes read "+iter*appConfig.LOCAL_CHUNK_SIZE+" < "+$scope.view.file.size);
+          return;
+        } else {
+          console.log("working");
+          loadData(chunk.data); // parsing and rendering is slow
+        }
       },
+      //fastMode: true, // automatically enabled if no " appear
       beforeFirstChunk: function(chunk) {
-        $scope.view.loadedFileName = file.name;
+        if (mode === "streamRemote") {
+          $scope.view.loadedFileName = getRemoteFileName(url);
+        } else if (mode === "streamLocal") {
+          $scope.view.loadedFileName = url.name;
+        }
         var rows = chunk.split(/\r\n|\r|\n/);
         loadedFields = generateFieldMap(rows, appConfig.EXCLUDE_FIELDS);
         rows.splice(1, appConfig.HEADER_SKIPPED_ROWS);
@@ -283,14 +358,15 @@ angular.module('app').controller('appCtrl', ['$scope', '$http', '$timeout', 'app
         rows = rows.join('\n');
         return rows;
       },
-      //fastMode: true, // automatically enabled if no " appear
+      // end of stream*
       error: function(error) {
-        handleError(error, "danger");
         $scope.view.loading = false;
+        handleError("Could not download/stream the file.", "danger");
       }
     });
   };
 
+
   // show errors as "notices" in the UI
   var handleError = function(error, type, showOnce) {
     showOnce = typeof showOnce !== 'undefined' ? showOnce : false;
diff --git a/client/src/index.html b/client/src/index.html
index da35425..6383827 100644
--- a/client/src/index.html
+++ b/client/src/index.html
@@ -28,11 +28,11 @@
                 <div class="input-group">
                   <input type="text" class="form-control file-name" ng-model="view.filePath">
                   <span class="input-group-btn">
-                    <button class="btn btn-default" type="button" ng-disabled="!canDownload()" ng-click="getRemoteFile()">Download</button>
+                    <button class="btn btn-default" type="button" ng-disabled="!canDownload()" ng-click="loadFile(null)">Download</button>
                   </span>
                 </div>
                 <span class="btn btn-primary btn-file">
-                  Browse&hellip; <input type="file" file-upload-change="getLocalFile">
+                  Browse&hellip; <input type="file" file-upload-change="loadFile">
                 </span>
                 <div class="errors">
                   <div ng-repeat="error in view.errors track by $index" class="alert alert-{{error.type}} alert-dismissible" role="alert">
diff --git a/examples/tests/live_monitoring_README.md b/examples/tests/live_monitoring_README.md
new file mode 100644
index 0000000..3bf6de8
--- /dev/null
+++ b/examples/tests/live_monitoring_README.md
@@ -0,0 +1,4 @@
+To test the online monitoring feature, 
+* set appConfig.POLLING_INTERVAL=5000 (ms)
+* run the app, open file `examples/tests/no_timestamp.csv`
+* run this shell script: `for i in `seq 100`; do echo "$i, $(($i+10))"; echo "$i, $(($i+10))">>no_timestamp.csv; sleep 2; done`