Having trouble with the spike triggered average

I keep getting empty matrices when trying to determine a spike triggered average. Below is my code. Can anyone help??

spkr=[NaN,spikes(1:end-1)]; trig_spk=find(spikes>0 & spkr<=0); x1=1:length(spikes);

y2=zeros(1,length(trig_spk)); figure;plot (x1,spikes,'g',trig_spk,y2,'.') dog=[]; cat=[]; for i=1:length(trig_spk) try dog(i,:)=binarized( trig_spk(i) : trig_spk(i)+4000-1); cat(i,:)=spikes(trig_spk(i) : trig_spk +4000-1); end; end end;

Answer 1

[Star Strider]

I keep getting empty matrices too, because I don’t have your data.

Care to let us know what your ‘spikes’ data are?

Answer 2

[Holly Hunsberger]

 Attached is the data file. Thanks!

[Star Strider]

Not yet.

Answer 3

[Holly Hunsberger]

Also, the window is 200ms. (200ms before a spike and after)

[Star Strider]

When you post it, will your data also have a time variable?

[Image Analyst]

After you click "Choose file..." remember to click the "Attach file" button or else it won't attach.

Also, read this and fix your post: http://www.mathworks.com/matlabcentral/answers/13205-tutorial-how-to-format-your-question-with-markup

Answer 4

[Holly Hunsberger]

Time wasn't in the original data file, but I figured it out to be t=1:length(stimulus); t=t./sr;

[Star Strider]

No data file yet.