Gene correlation feature

What's the true purpose of `Sanity_correlation`?

I used real experimental data. It produced this result for gene pairs in 3411 genes whose snr > 1. I don't think this kind of correlation statistics is possible.

<img width="800" height="600" alt="Image" src="https://github.com/user-attachments/assets/b5d5e0d5-2f68-4a5f-9cef-b07207386ed3" />