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MicroStats: calculation of statistics #942
Description
Description
[EEGLAB error in function MicroStats() at line 167:
Undefined function 'nanmean' for input arguments of type 'single'
Attach a link to Dropbox or Google Drive with screenshots and your data if possible.]
#### Steps to Reproduce
- [Tools]
- [Microstate analysis toolbox]
- [Use labels obtained from>Backfitting prototypes to EEG>Ok]
#### Expected behavior: [*To get the microstate statistics of duration, occurrence etc.*]
#### Actual behavior: [*Error message pop-up*]
#### Versions
| OS version | [Windows 11 23H2] |
| Matlab version | [R2026a] |
| EEGLAB version | [EEGLAB v2026.0.0] |
| Microstate Analysis Toolbox (Poulsen 2018) | [MST v1.0] |
Activity
ericaflaten commentedon Jun 30, 2026
Yes I am having a similar issue but with running any EEGlab function that uses 'nanmean' instead of 'mean' with the argument 'omitnan'. I just updated my matlab to 2026a, and my EEGLab is the most recent version as well (2026.0.0). Any time I try to run my preprocessing function that calls to EEG lab I get the following error:
Unrecognized function or variable 'nanmean'.
Error in eega_tRejCorrCh (line 102)
avgcorrs = nanmean(corrs);
^^^^^^^^^^^^^^^^^^^^^^^^^^
Error in eega_tArtifacts (line 202)
[ ~, bct ] = fhandle( EEG, inputs{:});
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Error in preprocessing_fun (line 388)
EEG = eega_tArtifacts(EEG, Ppp.ArtBadEl, 'KeepRejPre', 1);
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
arnodelorme commentedon Oct 2, 2026
This was moved to the APICE issue
neurokidslab/eeg_preprocessing#9