Correlation Metric for Gen Expression Matrix that is robust against noise?

Question

[Benni]

Currently I´m using Pearson, but is there a more robust distance metric? I want to calculate the correlation between two genes over several conditions.

Answer 1

[Benn]

Next to Pearson's correlation, there are two other coefficients available. The Spearman's rank and Kendall's (tau) rank correlation coefficients.