asinp {plgraphics}

arc sine Transformation

Description

Calculates the sqrt arc sine of x/100, rescaled to be in the unit interval.
This transformation is useful for analyzing percentages or proportions of any kind.

Usage

asinp(x)

Arguments

x

vector of data values

Value

vector of transformed values

Note

This very simple function is provided in order to simplify formulas. It has an attribute "inverse" that contains the inverse function, see example.

Author(s)

Werner A. Stahel, ETH Zurich

Examples

asinp(seq(0,100,10))
( y <- asinp(c(1,50,90,95,99)) )
attr(asinp, "inverse")(y)