Filter a matrix of data

I have a data matrix, 2 columns and N rows. Lets call the columns x and y. I want all rows that meet teh following condition (X<25 and Y>30) to be nulled out of the original matrix and stored in a new matrix.

Answer 1

[Rik]

Just use logical indexing:

N=100;data=randi(100,N,2)/2;%generate random data

L=data(:,1)<25 & data(:,2)>30;
newdata=data(L,:);
data(L,:)=[];

[Atique Malik]

Thanks!