Topic: Utilities
Topic Description:
Basic R utilities used in many packages and functions, such as date and string manipulations, statistical distributions, geometry of lines and distances. The R package date is required for the two data functions.
File: utilities/distributions.r
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Function: dbeta.reparam
Function Description: dbeta.reparam
This reparameterizes the beta distribution as a function of its mean and standard deviation. The mean must be between 0 and 1, and sd>0.Function Arguments:
| Argument | Default Value |
|---|---|
| x | |
| mu | |
| sd |
Function Source:
dbeta.reparam=function(x,mu,sd)
{
a=(1-mu)*mu^2/(sd^2)
b=(a/mu)-a
return(dbeta(x,shape1=a,shape2=b))
}
{
a=(1-mu)*mu^2/(sd^2)
b=(a/mu)-a
return(dbeta(x,shape1=a,shape2=b))
}