R/get.correlation.p.and.corr.R

In BoutrosLab.plotting.general: Functions to Create Publication-Quality Plots

# The BoutrosLab.statistics.general package is copyright (c) 2011 Ontario Institute for Cancer Research (OICR)
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get.correlation.p.and.corr <- function(x, y, alternative = 'two.sided', method = 'pearson') {
	x = as.numeric(x);
	y = as.numeric(y);
	if( (method == 'spearman') & ( anyDuplicated(x) | anyDuplicated(y) ) ) {exact = FALSE;}
	else {exact = TRUE;}
	tryCatch(
		expr = as.vector(
			unlist(
				cor.test(
					x = x,
					y = y,
					alternative = alternative,
					method = method,
					exact = exact
					)[c('estimate', 'p.value')]
				)
			),
		error = function(e) { return ( c(NA, NA)); }
		);
	}