[FieldTrip] explore cluster statistics

[Afshin Samani]

Hi,



I have never used fieldtrip before but I was trying to get familiar with its statistical analysis tools.

I tried to run the online example from:

http://www.fieldtriptoolbox.org/example/use_simulated_erps_to_explore_cluster_statistics



I am using MATLAB Version: 9.4.0.813654 (R2018a) and I downloaded that latest version of fieldtrip on 5 nov 2018



I face two errors:



first at ft_math function:



Error using ft_math (line 151)

the requested parameter is not present in the data



Error in Nonparametric_statistical_testingEEGandMEG_data (line 45)

difference = ft_math(cfg, timelock1, timelock2); % line 137 of ft_datatype_timelock removes the fields



and if I comment that line out, I face another error at ft_timelcokstatistics



Error using chol

Matrix must be square.



Error in montecarlo (line 13)

R = chol(Sigma);   % Y = R^{-T}X has covariance I



Error in ft_timelockstatistics (line 185)

  [stat] = statmethod(cfg, dat, design);



Error in Nonparametric_statistical_testingEEGandMEG_data (line 63)

stat = ft_timelockstatistics(cfg, timelock1, timelock2);



Any comment?



Best regards,


Associate Prof. Afshin Samani, PhD
Sport Sciences
Dept. of Health Science and Technology
Aalborg University, Aalborg
Denmark
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