[Mne_analysis] MNE source estimate analysis with multiple conditions

[Andrew R. Dykstra]

Hi Lyam,


See here:

http://martinos.org/mne/dev/generated/mne.epochs.equalize_epoch_counts.html


HTH,

Andy


On 2017-04-17 06:04 PM, Lyam Bailey wrote:
>
> I suppose we could equalise the number of epochs per condition, in 
> theory (although I'm not familiar with the best way to do this). 
> Basically the unequal epoch numbers arose due to problems during data 
> collection, whereby a few random trials were lost in almost every 
> subject.
>
>
> Regards
>
> Lyam
>
>
> ---------------------------------------------------------
>
> Lyam Bailey, BSc.
>
> Graduate Student
> Department of Psychology & Neuroscience
> Dalhousie University
>
> ------------------------------------------------------------------------
> *From:* mne_analysis-bounces at nmr.mgh.harvard.edu 
> <mne_analysis-bounces at nmr.mgh.harvard.edu> on behalf of 
> Denis-Alexander Engemann <denis.engemann at gmail.com>
> *Sent:* Monday, April 17, 2017 4:40:11 PM
> *To:* Discussion and support forum for the users of MNE Software
> *Subject:* Re: [Mne_analysis] MNE source estimate analysis with 
> multiple conditions
> Does your experimental logic allow you to equalize the number of 
> epochs per conditions or do you have some rare events by design?
>
> Denis
>
> On Mon, Apr 17, 2017 at 11:30 AM Lyam Bailey <Lyam.Bailey at dal.ca 
> <mailto:Lyam.Bailey at dal.ca>> wrote:
>
>     Hi Alex,
>
>
>     Thanks for the tip! I'm glad you mentioned this because as it
>     happens, I don't have the same number of epochs for each
>     condition. Can you suggest a work around?
>
>
>     Regards
>
>     Lyam
>
>
>     ---------------------------------------------------------
>
>     Lyam Bailey, BSc.
>
>     Graduate Student
>     Department of Psychology & Neuroscience
>     Dalhousie University
>
>     ------------------------------------------------------------------------
>     *From:* mne_analysis-bounces at nmr.mgh.harvard.edu
>     <mailto:mne_analysis-bounces at nmr.mgh.harvard.edu>
>     <mne_analysis-bounces at nmr.mgh.harvard.edu
>     <mailto:mne_analysis-bounces at nmr.mgh.harvard.edu>> on behalf of
>     Alexandre Gramfort <alexandre.gramfort at telecom-paristech.fr
>     <mailto:alexandre.gramfort at telecom-paristech.fr>>
>     *Sent:* Tuesday, April 11, 2017 6:31:55 PM
>     *To:* Discussion and support forum for the users of MNE Software
>
>     *Subject:* Re: [Mne_analysis] MNE source estimate analysis with
>     multiple conditions
>     > This would be dSPM(a) - dSPM(b).
>
>     tiny detail: this will only be true if the two conditions have the
>     same number of epochs averaged in each condition.
>
>     Alex
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