correlation_within {ERPM}

Within groups correlation

Description

This function computes the correlation between the two attributes for individuals in the same group.

Usage

correlation_within(partition, attribute1, attribute2, group)

Arguments

partition

A partition (vector)

attribute1

A vector containing the values of the first attribute

attribute2

A vector containing the values of the second attribute

group

A number indicating the selected group

Value

A number corresponding to the correlation coefficient

Examples

p <- c(1,2,2,3,3,4,4,4,5)
at <- c(3,5,23,2,1,0,3,9,2)
at2 <- c(3,5,20,2,1,0,0,9,0)
correlation_within(p,at,at2,4)