transform_prm {xpose} | R Documentation |
Mean and variance of tranformed parameters
Description
The function calculates the mean and variance of function of parameters
Usage
transform_prm(formula, mu, sigma, method = "delta", samples = 1000)
Arguments
formula |
A formula describing the transformation. |
mu |
Vector of mean values for the variables in formula. |
sigma |
Covariance matrix for the variables in formula. |
method |
A string indicating which method to use for the calculation. |
samples |
Number of Monte-Carlo samples for method "mc" |
Value
A list with entries 'mean', 'variance' and 'rse'
Examples
# Mean, variance and rse for sqrt of variable with mean 1 and variance 0.01
transform_prm(~sqrt(a), mu = c(a = 1), sigma = c(a = 0.01))
[Package xpose version 0.4.19 Index]