The rho is used to define a gap and variation between two datasets, similar to fc(fold change).
Usage
rhov(XA, XB)
Arguments
XA
a numeric vector in condition A.
XB
a numeric vector in condition B.
Value
return a numeric value
Details
The rho is defined as square root of products of $$\psi$$ and $$\zeta$$, that is $$\rho=\sqrt{\psi\zeta}$$ where \(\psi\) is used to define a overlap between two datasets and \(\zeta\) is used to define effect variation. \(\rho > 1\) indicates that there is gap between two datasets and noise is smaller than treatment effect, otherwise, there is overall lap and big noise in two datasets.
References
Yuan-De Tan Anita M. Chandler, Arindam Chaudhury, and Joel R. Neilson(2015) A Powerful Statistical Approach for Large-scale Differential Transcription Analysis. Plos One. 2015 DOI: 10.1371/journal.pone.0123658.