[Mne_analysis] "Value too large to be stored in data type" when running mne_mark_bad_channels in tcsh

[Stephen Politzer-Ahles]

Hi Eric,

Thanks, I will keep trying various things out in the meantime. I was also
concerned about file size limits, but it seems weird that other functions
like mne_process_raw still work on my big files.

If I don't find a solution, is it possible instead to just run
mne_mark_bad_channels on the averaged data (and make sure to use the
averaged, rather than the raw, as the --meas file in later steps of the
pipeline)?

Best,
Steve



Stephen Politzer-Ahles
New York University, Abu Dhabi
Neuroscience of Language Lab
http://www.nyu.edu/projects/politzer-ahles/


On Mon, Nov 25, 2013 at 5:20 AM, Eric Larson <larson.eric.d at gmail.com>wrote:

> Hey Steve,
>
> It is possible that this has to do with file locations being stored using
> 32-bit integers. I thought FIFF had an effective file-size limit of 2GB for
> that reason (using 32-bit signed integers would make this the limit), but
> I'm not 100% sure. If nobody beats me to a more definitive answer and you
> can't find anything about this issue yourself by tomorrow or Tuesday, I can
> look into it more then.
>
> Cheers,
> Eric
>
>
> On Sun, Nov 24, 2013 at 12:33 PM, Stephen Politzer-Ahles <spa268 at nyu.edu>wrote:
>
>> To whom it may concern:
>>
>> When I try to run mne_mark_bad_channels in tcsh on a raw .fif file (about
>> 3.25 GB), I get an error like the following:
>>
>> "/Volumes/data/....../A0007.fif ... [failed] fseek : Value too large to
>> be stored in data type"
>>
>> As far as I can tell this seems to be some kind of Unix error, not
>> something specific to MNE...but this happens regardless of which drive I
>> happen to be trying to modify data on, and also other functions that also
>> need to open the data (such as mne_process_raw) work fine, so I don't think
>> it's necessarily a permission or filesystem issue. Does anyone have any
>> idea what might be causing this?
>>
>> Thanks for your input,
>> Steve
>>
>>
>> Stephen Politzer-Ahles
>> New York University, Abu Dhabi
>> Neuroscience of Language Lab
>> http://www.nyu.edu/projects/politzer-ahles/
>>
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