Generate methylation mvalues

This task is only available when a beta value matrix data node is selected. It is log2 ratio of methylated vs unmethylated signal.

Mvalues are preferred for statistical modeling because of their normal distribution. When perform this task, a new data node is generated which contains a matrix of mvalues.

In Connected Multiomics, it is not necessary to do this step separately when perform Detected differential methylation on beta values, since this task automatically convert beta values to M values.