[Eeglablist] alpha as a Time/freq parameter in pop_precomp

[Arnaud Delorme]

Dear Ana,

using alpha to precompute ERSP is a legacy solution that we discontinued a long time ago. 
Usually significance gets computed using statistics defined in the STUDY channel or component plotting interface.
What you could try is to add 'maskdata', 'on' on the command line to std_erspplot (the call you get when you look at the history using eegh). This cannot be done using the graphic interface, only the command line. And I cannot guarantee it will work either since we do not support that option any more.
Best,

Arno

On 2 Oct 2012, at 15:16, Ana Navarro Cebrian wrote:

> Hi,
> I also posted this in the eeglab bugzilla. Sorry for the spam.
> I'm trying to precompute (pop_precomp) ERSPs in a STUDY set using the GUI
> window. 
> In the Time/freq parameters I've tried both, with and without the parameter
> 'alpha' 0.05, and in both cases, when I later plot the ERSPs, I obtain the same
> exact graphs. 
> Has anybody used alpha when precomputing ERSPs? Can anybody tell me whether the alpha 0.05 parameter is a default (it doesn't
> say so in the newcrossf help). I might not be understanding something so please
> any help is appreciated.
> Thanks,
> Ana
>  
> 
>  
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