Sum specific colums based on a criteria

Dear all, I have a column matrix A and an nxn matrix B. I have been able to estimate the correlation coefficient (R) between the constant column matrix A and each column vector in matrix B using corr(A,B). However, I am finding difficulties in summing only columns with their R=>0.2, while ignoring columns with R<0.2. I will be very grateful for the assistance.

Answer 1

[madhan ravi]

sum(R(:,any(R>=.2)))

[Albert Buabeng]

Thanks for your quick response, this code sums the correlation coefficients instead of the nxn matrix B.

[madhan ravi]

sum(B(:,any(R>=.2))) % syms B according to R satisfying the condition

[Albert Buabeng]

It's working just as expected, thank you very much. You are a live saver.