[Biosig-general] Problems with train_sc

[Aureli S. F. <aur...@st...>]

Dear all,

I am trying to use the classifying functions of biosig and for most of them I come up with the same error. This is an example of the code I am running:

> >>> size(dat)
> 
> ans =
> 
>    151     4
> 
> >>> size(gt)
> 
> ans =
> 
>    151     1
> 
> >>> unique(gt)
> 
> ans =
> 
>     -1
>      1
> 
> >>> out=train_sc(dat,gt,'GDBC');
> ??? Undefined function or method 'covm' for input arguments of type 'double'.
> 
> Error in ==> train_sc at 680
> 			[CC.MD(:,:,k),CC.NN(:,:,k)] = covm(D(ix,:), 'E');
>  
> >>> out=train_sc(dat,gt,'MD2');
> ??? Undefined function or method 'covm' for input arguments of type 'double'.
> 
> Error in ==> train_sc at 680
> 			[CC.MD(:,:,k),CC.NN(:,:,k)] = covm(D(ix,:), 'E');


I am wondering if I am doing something wrong. The only classifier I managed to use (I tested several with the same code) was 'SVM'. dat is a matrix of doubles. I tested the code with gt in {0,1} with the same result.

I would be very thankful if someone can help me. I was looking in the mailing list if someone came up with the same error in the past but I did not find any entry. Please answer directly to my e-mail address since I am not subscribed to the mailing list.

Best regards
Aureli

________________________________________

Aureli Soria-Frisch (Dr.-Ing.)
Research Engineer

C. Teodor Roviralta, 45 - 08022 – Barcelona - Spain
tel. +34 93 254 03 70, +34 93 254 03 66, Ext. -39
fax.	 +34 93 212 64 45
skyP  aureli.soria-frisch
e-mail. aur...@st...

________________________________________
Starlab, Living Science http://starlab.es
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