??? Index exceeds matrix dimensions

hi, can anyone help me with this error ??? Index exceeds matrix dimensions..here is my code

close all;
clear all;
lambda2 = [2 4 6 8];
theta2 = [0*pi/180, 45*pi/180, 90*pi/180, 135*pi/180, 180*pi/180, 225*pi/180, 270*pi/180, 315*pi/180];
no_lamd = 4;
no_theta = 8;

psi   = [0 pi/2];
gamma = 0.5;
bw    = 1;
N     = 1;

%%%%%%%%%%%%%%%%%%%%%%%%

ext = '.bmp';
dirr = 'D:\GPDSdataset\';

%[tr_data, tr_class, x, y, answer] = textread('train_file.txt','%s %d %f %d %s'); %train
[tr_data] = textread('trainfile_source.txt','%s'); %train 
[mtr ntr] = size(tr_data);%mtr

%assign class no
model = 100;
train = 5;

cnt = 0;
for i=1:5:5*model
    cnt = cnt + 1;
    for j = 0:1:4
        ts_class(i+j)=cnt;
    end
end
save ts_class ts_class

%select train image 

model = 100;
cnt1 = 0;
cnt2 = 0;
for j = 1:20:20*model
    for i = 0:1:4
        cnt1 = cnt1+1;
        AR_train(cnt1)= tr_data(j+i);
    end

      cnt2 = cnt2+1;
      AR_test(cnt2) = tr_data(j+5);
  end

size(AR_train');
size(AR_test');
??? Index exceeds matrix dimensions.

[Jan]

@Mo: Have you read a little bit in this forum before posting the first time? We ask the authors again and again and again to format the code, such that it is readable. Either start the code lines by two spaces, or mark the code and hit the "{} Code" button. There is a link called "Markup" on this page, which explains the details. And Oleg spent some time to create this nice tutorial: http://www.mathworks.com/matlabcentral/answers/13205-tutorial-how-to-format-your-question-with-markup .

Then it would be more efficient, if you post the line, which causes the error. Although the contributors are very enganged to fix bugs, but it is your turn to describe it as good as possible.

[Mo]

Dear Jan, hope this is readable, ive also mention which line that causes the error,hope to hear from you soon,tq

close all;

clear all;

dbstop if error

lambda2 = [2 4 6 8];

theta2 = [0*pi/180, 45*pi/180, 90*pi/180, 135*pi/180, 180*pi/180, 225*pi/180, 270*pi/180, 315*pi/180];

no_lamd = 4;

no_theta = 8;

psi = [0 pi/2];

gamma = 0.5;

bw = 1;

N = 1;

%%%%%%%%%%%%%%%%%%%%%%%%

ext = '.bmp';

dirr = 'D:\GPDSdataset\';

[tr_data] = textread('trainfile_source.txt','%s'); %train

[mtr ntr] = size(tr_data);%mtr

%assign class no

model = 100;

train = 5;

cnt = 0;

for i = 1:5:5*model

cnt = cnt + 1;

for j = 0:1:4

ts_class(i+j)=cnt;

end

end

save ts_class ts_class

%select train image

model = 100;

cnt1 = 0;

cnt2 = 0;

for j = 1:20:20*model

for i = 0:1:4

cnt1 = cnt1+1;

AR_train(cnt1) = tr_data(j+i);%(this is the error)

end

cnt2 = cnt2+1;

AR_test(cnt2) = tr_data(j+5);

end

size (AR_train');

size (AR_test');

[Sean de Wolski]

The error message probably says what line the indexing error is on as well, please report that.

Answer 1

[Jan]

Using the debugger would lead you to a solution efficiently:

dbstop if error

Then start the program. Now MATLAB stops, when the error occurs and you can inspect the current values of the variables in the command window or workspace browser. Finally you can find out by yourself, which index exceeds which dimension of which variable.