Values equal to zero in matrix

Hello I have a data set as input for ANN, some of the value is equal to zero, lets say column number 3. Some of rows has zero value on the that column and other with nonzero value. Now, how I set up condition that will not read row that has zero value on column 3 on my prediction function.

prediction = zeros(1000, 1);
j = 1;
while (j<=4)
  prediction(j,1) = cuRnet(input_data(j,:)');
  j=j+1;  
end

Answer 1

[James Tursa]

E.g., if you want to test for that condition within the loop itself:

if( input_data(j,3) ~= 0 )
    prediction(j,1) = cuRnet(input_data(j,:)');
end

Or you could create a test result for that column prior to the loop:

col3 = inputdata(:,3) ~= 0;

and then use that result within the loop:

if( col3(j) )
    prediction(j,1) = cuRnet(input_data(j,:)');
end

[yousef alsenani]

Great James! let me try it.