error-index exceeds matrix dimension

in the following code i got error and not resolve this error to train network for new algrithm.please help me how to set data values.

grayFeat=graymatterimageMatrix(find(graymatterimageMatrix~=1)); 
whiteFeat=whitematterimageMatrix(find(whitematterimageMatrix~=0));
csfFeat=csfimageMatrix(find(csfimageMatrix~=0));
trainingFeat=[grayFeat;whiteFeat;csfFeat];
trainingFeat=double(trainingFeat);
TrainSet=[trainingFeat(1:249543);trainingFeat(249544:322292);trainingFeat(322293:359819)];  
TrainOut = zeros(359819,3);
TrainOut(1:249543,1) = 1;
TrainOut(249544:322292,2) = 1;
TrainOut(322293:359819,3)=1;

[Walter Roberson]

What is size(trainingFeat)

[rosi khan]

grayFeat,whiteFeat,csfFeat each contain 25 images

[Walter Roberson]

At the command line give the command

dbstop if error

and run your code. When the problem occurs, give the command

size(trainingFeat)

and show us the result. Also show us which line the problem occurs on

[rosi khan]

sure sir.

[Walter Roberson]

Okay, and what was the result you got?

[rosi khan]

resolve the error.thanks

[Walter Roberson]

You fixed the error?