how to extract matrix based on a condition?

Hello Everyone, if I have a matrix for example 100 rows by 38 columns, column number 14 has distances, how can i build a for loop with a condition saying: if the distance is between 8 and 12 ft then take the rows corresponding to this condition to construct a new matrix, and put zeros instead of them in the main matrix. i need to do this because i need to stay away from duplicate data when i run another condition. HELP PLEASE

Answer 1

[KSSV]

You need not to use a loop, you can use the below lines of code to get what you want.

A = randi(100,38) ;   % some random data 
distance = A(:,14) ;
%%apply condition to get rows indices satifying the condition
idx = find(distance > 8 & distance < 12)

[MAHMOUD ALZIOUD]

Thank you KSSV for this, now when I take the data by this condition, how can I leave the rows zeros in the original matrix after I take them?