error on first step of tutorial

[William Graves]

Dear Princeton MVPA Toolbox Developers,

I’m trying to choose an MVPA tutorial for the grad class I’m teaching, and I was thinking of using yours. However, after following the setup instructions in the manual, I get the following error when trying to run the first line of the tutorial:

>> subj = init_subj('haxby8','tutorial_subj');

Error using datetime (line 608)

Input data must be a numeric or a cell array or char matrix containing date/time

strings.

Error in init_subj (line 40)

created = datetime(true);

I’d appreciate any help you can give.

Thanks,

Will

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William W. Graves, Ph.D.

Assistant Professor, Department of Psychology
Rutgers, The State University of New Jersey
Smith Hall, Room 337
101 Warren Street, Newark, NJ  07102

Voice: 973-353-3947

Fax: 973-353-1171
http://lbbil.rutgers.edu

[Greg Detre]

I don't have a running Matlab in front of me, but my hunch is that this is because the MVPA Toolbox defines a function called 'datetime' which shadows the Matlab function with the same name.

Somehow, your paths aren't correct, i.e. it's calling the built-in Matlab function rather than the MVPA function. If you run 'which datetime', you can probably corroborate this.

So you need to adjust your paths to make ours higher priority. Or rename all instances of 'datetime' in the MVPA codebase to something like 'mvpa_datetime'.

Ah, you know, I thought this sounded familiar. See:

https://groups.google.com/forum/#!topic/mvpa-toolbox/VDMK0b01zKI

g

P.S. The long-term solution is that we should rename our datetime function... or for Matlab to introduce better namespacing :)

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Greg Detre

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