Problem in matching a subset of columns of two matrices

I have the following matrices:

*********************
  Training data set: T
*********************
     1     2     0
     1     3     1
     1     4     1
     0     2     0
     0     3     0
     0     4     1
     0     3     1
     0     4     0

*********************
   Generated Rules: R
*********************
    -1     2     0
     1     3     1
     1     4     1
     0     3     0
     0     4     0
     0     3     1
     0     4     1

Problem:

I want to compare the first two columns of matrix R with each row of the matrix T and if matched write all the matching rows of T into a separate matrix. A help is needed.

Thanks in advance.

Rahman Ali

Answer 1

[Rahman]

Thanks Walter,

Thanks for the answer but i want to take one row of T each time and compare with all rows of R for match, if row(s) match then write all those into a new matrix. I want to repeat the same process for all rows of T and as a result, I will get more matrices (not one) for the matched rows.

Needs your nice comments.

Thanks Rahman Ali

[Walter Roberson]

http://matlab.wikia.com/wiki/FAQ#How_can_I_create_variables_A1.2C_A2.2C....2CA10_in_a_loop.3F

Answer 2

[Walter Roberson]

NewT = T(ismember( T(:,[1 2]), R(:,[1 2]), 'rows'), :);