[moved] matrix operations in matlab

[emerson_11]

Am having a feature matrix with 12 rows and 5 coloumns which contains male and female image features. i want to split and assign first five rows for a variable 'male' and remaining rows for a variable 'female'. How can i do that in matlab?

 

[srizbf]

Re: matrix operations in matlab

using colon) notation , matrices can be separated.

 

[emerson_11]

is this code correct?
clc;
clear all;
close all;
load m1
save m1.mat a
x = a,1);
y = a,2);

 

[srizbf]

x=(1:5,;
y=(6:12,;

 

[emerson_11]

it just shows this error.
"Error in sample (line 5)
x=m1(1:5,;"
I have stored the matrix as m1.mat. so can call write the code like this?
load m1
x=m1(1:5,;
y=m1(6:12,;

 

[srizbf]

a typo in my earlier post:
instead of
x=(1:5,;
y=(6:12,;
it should be

x=a(1:5,;
y=a(6:12,;

In your code , first comes 'load m1'

what is m1?
does it contain only one variable?

not clear in your code.

 

[emerson_11]

m1 is a matrix.I have stored my features in m1 matrix

 

[srizbf]

if you refer m1 as a matrix , then x=m1(...); is correct
.

 

[emerson_11]

Am doing HOG feature extraction which gives me 1*4680 vector.Can anyone suggest me any steps to reduce the size of this vector?