asremlPlus (version 4.2-26)

angular.mod: Applies the modified angular transformation to a vector of counts.

Description

Applies the angular transformation to a vector of counts. A modified transformation is used that is appropriate when N < 50 and the proportion is not between 0.3 and 0.7. The transformation is given by \(\sin^{-1}{\frac{count + 0.375}{n + 0.75}}\) arcsin( sqrt( (count + 0.375) / (n + 0.75) ) ).

Usage

angular.mod(count, n)

Arguments

count

The numeric vector of counts.

n

The number(s) of observations from which the count(s) were obtained.

Value

A numeric vector.

See Also

angular, powerTransform.

Examples

# NOT RUN {
n <-25
y <- rbinom(10, n, 0.5)
y <- c(y,0,n)
p.ang.mod <- angular.mod(y, n)
# }