**10**wrote:

Hello

I am analyzing data through SomaticSignatures package. I am trying to use assesNumberSignatures function to determine number of signatures.

I entered the following commands:

> n_sigs = 2:8

> gof_pca = assessNumberSignatures(cancer_mm, n_sigs, pcaDecomposition)

When I entered the second command, I got the following error:

**Error in findSignatures(m, nSigs, decomposition, ...)**

**'nSigs|r' must be a single positive integer in the range [1,4]**

Would someone please help me in this?

Regards

**13k**• written 2.8 years ago by arsala521 •

**10**