Explicitly define functions needed for IMIS

[evaenns]

darthpack/analysis/03_calibration.R

Line 81 in 6fbbfcc

#### 03.3.2 Run IMIS algorithm ####

Add the following to clearly define the functions being called by IMIS()

# define three functions needed by IMIS: prior(x), likelihood(x), sample.prior(n)
prior <- calc_prior
likelihood <- calc_likelihood
sample.prior <- sample_prior