[Eeglablist] Saving data set changes rank

[Johnson, John T.]

When I load a data set, the rank of the data is 58, the same as the number of channels.
Making no changes and saving the data set with another name, the rank changes to 1.
I like saving data at various check points while preprocessing, and this change in rank can affect specifying rank for the pca option to ica, or pcakeep to AMICA.
Any ideas?

>> EEG = pop_loadset('filename','pre_p36_nv_to.set','filepath','Processed/');
pop_loadset(): loading file Processed/pre_p36_nv_to.set ...
Reading float file 'Processed/pre_p36_nv_to.fdt'...
>> rank(EEG.data)

ans =

    58

>> EEG = pop_saveset( EEG, 'filename', 'rankdef.set' );
Saving dataset...
>> rank(EEG.data)

ans =

     1

>> rank(EEG.data')

ans =

     1


Thanks,
John

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