conversion of co-expression matrix in to vector using R

Question

[Neu]

Hi, I have obtained a co-expression matrix (size=17740*17740) as below using R.

          gene1        gene2        gene3       
gene1     1.00000000 -0.43360020  0.64476873  
gene2    -0.43360020  1.00000000 -0.19004216  
gene3     0.64476873 -0.19004216 -0.06267813

I want to convert it as below.

gene1 gene1 1
gene1 gene2 -0.43360020
.
.

How can I do this?

Thank You

Answer 1

[Devon Ryan]

Use the gather() function in the tidyr package.

[Neu]

Thank you. I used melt() function of reshape and got the result.