Column labels are missed after "corrcoef" function

I have a matrix with 50 columns and 10 rows. The 1st row is name of each column followed by 10 rows of numbers. Correlation coeff. are obtained between all possible pairs across the 50 columns, and the R values are extracted by

RPairs = [nchoosek(1:size(data,2),2), nonzeros(tril(R,-1))];

However, in the output RPairs file, all the column names are missed and are labelled as column numbers instead. e.g.

1 2 0.34

1 3 0.67

1 4 0.78

1 5 0.95

...

How can I get RPairs with the column names as I input?

Thank you, any help will be appreciated.

[Azzi Abdelmalek]

which file?

[WaitinG]

RPairs