Inverse of transform1 for the purpose of deriving initial values.
Usage
transform1.inv(params, index.t=1:length(params), lowlimit=rep(0,length(index.t)), ... )
Arguments
- params
full input parameter vector
- index.t
indices of parameters to be transformed (default all)
- lowlimit
lower limits to be applied (default zero), where the k-th component of lowlimit is applied to the k-th index in index.t
- ...
not used
Value
Transformed parameter vector.
Examples
params <- c(.1, .5, 1) # Desired initial values on original scale
transform1.inv(params, lowlimit=c(0, -1, 1)) # Initial values to use on transformed scale
#> [1] -2.3025851 0.4054651 -Inf