conv: Convert between parameterisations

In edpcr: Performs Extended Digital PCR Analysis

Description

This function is used by cqmc to convert between parameterisations. Optionally includes determinant required by cqmc.

Usage

conv(pars, from = "m", to = "c", det = FALSE)

Arguments

pars	vector of parameters with names
from	"m", "p" or "c" represents initial parameterisation
to	"m", "p" or "c" represents final parameterisation
det	logical, if TRUE then output is list with determinant of transformation

Details

"c" and cpars represent calculation pars (includes lambda used in CMP distribution).
"p" and pars represent original pars (includes mu, parameter of interest).
"m" and mpars represent pars transformed to find mode using optim and to run MCMC.

Value

If det is FALSE then transformed vector.

If det is TRUE then a list with:

new.pars	The transformed vector
dfac	The absolute value of the determinant of the transformation if from is "m" and to is "c" and NA otherwise

Author(s)

Philip Wilson

See Also

conv.mcmc

Examples

pars<-c(mu=1.5,E=0.95,A=10^-15,trendx=10^-3,
 trendy=-10^-3,E1=0.8,disp=1.5)

mpars<-conv(pars,"p","m")

cpars<-conv(mpars,"m","c",det=TRUE)

conv(cpars[[1]],"c","p")

edpcr documentation built on May 2, 2019, 5:22 p.m.