Why is my for loop code not incrementing correctly?

Hi!

In the code below, the data1 matrix has 100000 data in each of the two columns. I want to read the second column and divide whole column 2 with a gap of 256. That means, I want data from 1 to 256 in one matrix and then 257 to 512 in another and so on. But, the for loop that I have used is giving me only one output of the data , ie one matrix. I want to have all these data separted with a record size of 256 in differnet tables or matrices. What am i missing here?

start= 1;
last= 256;

for n= 1:1:389
    %     fprintf("%d \n", n)
    n = data1(start:last, 2);
    start= last+1;
    last= start+ 255;
end

Any help would be very much appreciated.

Answer 1

[Walter Roberson]

N = 256;
last = floor(size(data1,2)/N) * 256;
buffered = reshape(data1(1:last, 2), N, []);

The entries will now be down columns.

| want to have all these data separted with a record size of 256 in differnet tables or matrices.

That would require creating variables dynamically, which we highly recommend not be done.

[Walter Roberson]

Please read http://www.mathworks.com/matlabcentral/answers/304528-tutorial-why-variables-should-not-be-named-dynamically-eval for information about why we strongly recommend against creating variable names dynamically.