ppcor: An R Package for a Fast Calculation to Semi-partial Correlation Coefficients

Lack of a general matrix formula hampers implementation of the semi-partial correlation, also known as part correlation, to the higher-order coefficient. This is because the higher-order semi-partial correlation calculation using a recursive formula requires an enormous number of recursive calculations to obtain the correlation coefficients. To resolve this difficulty, we derive a general matrix formula of the semi-partial correlation for fast computation. The semi-partial correlations are then implemented on an R package ppcor along with the partial correlation. Owing to the general matrix formulas, users can readily calculate the coefficients of both partial and semi-partial correlations without…

• NS
  National Science Foundation

  Awards: DMS-1312603, P30 CA022453, 1312603
• WS
  Wayne State University
• BA
  Barbara Ann Karmanos Cancer Institute

  Award: P30 CA022453
• NI
  National Institutes of Health

  Awards: CA022453, P30 CA022453