tidy_pi_traces function

a helper function to tidy up the pi-traces that come out of the mcmc functions

This makes a tidy data frame of stuff, and also changes things back to factors, if the levels are provided.

tidy_pi_traces(input, pname, car_tib, interval)

Arguments

• input: The output to tidy (i.e.. out$trace$pi)
• pname: the name that you want the parameter to be called in the output
• car_tib: a tibble with repunit and collection in the order they appear in the output
• interval: the thinning interval that was used