correlogram: Correlogram

In douve/viRievac: Main R functions (viRievac)

Description

R function that creates a correlation matrix or correlogram with all the numerical variables included in the dataset provided. As an addition to the plot, the function also performs all possible pairwise linear regressions between variables giving the results in an excel table.

Usage

correlogram(data,method,upper.col,lower.col,signif.col,sig.level,
            regression.line, regression.line.col,main,
            save,height,width,path.output,filename,date,regression.table)

Arguments

data	Data set only with numerical variables and without missings.
method	a character string indicating which correlation coefficient is to be used for the test. One of "pearson", "kendall", or "spearman", can be abbreviated.
upper.col	Upper circles color palette
lower.col	Lower dotplot color
signif.col	significance stars color
sig.level	significance level. default:0.05
regression.line	logical. Dot plot with linear regression
regression.line.col	regression line color
main	Chart title
save	logical. Save the correlogram in pdf
height	pdf parameter
width	pdf parameter
path.output	path
filename	pdf file name
date	include the current date in the filename?
regression.table	logical. Save regression.table in an excel (only when save is TRUE)

Value

A correlogram plot.

When specified, a regression table with all possible pairwise linear regressions is created and saved in excel. The output has 7 columns: yvar, xvar, alpha, beta, R2, Pval and Pval.sign.

Examples

data(iris)

correlogram(iris[,-5],method='pearson')

douve/viRievac documentation built on Nov. 26, 2020, 2:39 a.m.