pic.calc {NPRED}

Calculate PIC

Description

Calculate PIC

Usage

pic.calc(X, Y, Z = NULL)

Arguments

X

A vector of response.

Y

A matrix of new predictors.

Z

A matrix of pre-existing predictors that could be NULL if no prior predictors exist.

Value

A list of 2 elements: the partial mutual information (pmi), and partial informational correlation (pic).

References

Sharma, A., Mehrotra, R., 2014. An information theoretic alternative to model a natural system using observational information alone. Water Resources Research, 50(1): 650-660.

Galelli S., Humphrey G.B., Maier H.R., Castelletti A., Dandy G.C. and Gibbs M.S. (2014) An evaluation framework for input variable selection algorithms for environmental data-driven models, Environmental Modelling and Software, 62, 33-51, DOI: 10.1016/j.envsoft.2014.08.015.