beta_get_shape_params: Calculate the two shape parameters from the mean ('mu') and...

In pacific-hake/hake-assessment: Stock Assessment for Pacific Hake

Calculate the two shape parameters from the mean (mu) and cv which is what is in the SS files.

Description

Calculate the two shape parameters from the mean (mu) and cv which is what is in the SS files.

Usage

beta_get_shape_params(mu, cv)

Arguments

mu	The mean of the Beta distribution
cv	The CV of the Beta distribution

Details

To make a plot of the Beta function based on values from SS3 which are labelled prior and pr_sd in the control file, do this: s1 <- beta_get_shape_params(prior, pr_sd)[1] s2 <- beta_get_shape_params(prior, pr_sd)[2] ⁠ggplot() +⁠ ⁠geom_function(fun = stats::dbeta,⁠ ⁠args = list(shape1 = s1, shape2 = s2, log = FALSE))⁠

Value

A vector of two values, the two shape parameters, also know as shape1 and shape2 by the stats::dbeta() function

pacific-hake/hake-assessment documentation built on Jan. 14, 2025, 9:12 p.m.