Correlation

Calculate the correlation of the design. The function gets the design from the design object before passing it to cor from stats. This is a wrapper around cor.

cor(x, ...)

Arguments

x

A model object of class 'spdesign'

...

Additional parameters passed to the function

Value

A matrix with correlations

Details

Note that when your design includes constants, the function will print a warning because the standard deviation of a constant is 0.