Logical Indexing Data Issue

I'm working on a project where I'm given a large matrix. I'm trying to isolate all third column values that fit into a certain group (ie an array of all values in the third column when column 1 is equal to 5 and column 2 is equal to 4). I've tried using logical indexing to accomplish this but have so far failed. Any help would be greatly appreciated.

Answer 1

[Star Strider]

Logical indexing is the way to go. You need to set the logic up correctly:

This works:

M = randi(9, 1000, 3);                                  % Create Data
M(10, 1:2) = [5 4];                                     % Be Certain One Row Matches Criteria
Out = M((M(:,1) == 5) & (M(:,2) == 4), 3);              % Desired Result

Answer 2

[Adam]

myMatrix = randi( 10, 1000, 3 );  

condition = myMatrix( :, 1 ) == 5 & myMatrix( :, 2 ) == 4;

result = myMatrix( condition, 3 );