Extracting specfic columns based on a matrix

Hi,

I have matrix A which is 56x1 and I also have matrix B which is 6001x194.

The 56 numbers in matrix A are also found within column 191 of matrix B (they are 56 of the 6001 numbers found in column 191 of matrix B) . I want to extract columns 191, 192,193 & 194 from matrix B but only for the rows where the numbers from Matrix A are the same as the numbers from column 191 of matrix B.

How would I go about doing this? Thanks!

[Image Analyst]

Did you try ismember()?

Answer 1

[Azzi Abdelmalek]

 B (ismemeber (B(:,191), A),191:194)