tidy_inverse_gamma: Tidy Randomly Generated Inverse Gamma Distribution Tibble
In TidyDensity: Functions for Tidy Analysis and Generation of Random Data

View source: R/random-tidy-gamma-inverse.R

tidy_inverse_gamma

R Documentation

Tidy Randomly Generated Inverse Gamma Distribution Tibble

Description

This function will generate n random points from an inverse gamma distribution with a user provided, .shape, .rate, .scale, and number of random simulations to be produced. The function returns a tibble with the simulation number column the x column which corresponds to the n randomly generated points, the d_, p_ and q_ data points as well.

The data is returned un-grouped.

The columns that are output are:

sim_number The current simulation number.
x The current value of n for the current simulation.
y The randomly generated data point.
dx The x value from the stats::density() function.
dy The y value from the stats::density() function.
p The values from the resulting p_ function of the distribution family.
q The values from the resulting q_ function of the distribution family.

Usage

tidy_inverse_gamma(
  .n = 50,
  .shape = 1,
  .rate = 1,
  .scale = 1/.rate,
  .num_sims = 1,
  .return_tibble = TRUE
)

Arguments

`.n`	The number of randomly generated points you want.
`.shape`	Must be strictly positive.
`.rate`	An alternative way to specify the `.scale`
`.scale`	Must be strictly positive.
`.num_sims`	The number of randomly generated simulations you want.
`.return_tibble`	A logical value indicating whether to return the result as a tibble. Default is TRUE.

Details

This function uses the underlying actuar::rinvgamma(), and its underlying p, d, and q functions. For more information please see actuar::rinvgamma()

Value

A tibble of randomly generated data.

Author(s)

Steven P. Sanderson II, MPH

Other Continuous Distribution: tidy_beta(), tidy_burr(), tidy_cauchy(), tidy_chisquare(), tidy_exponential(), tidy_f(), tidy_gamma(), tidy_generalized_beta(), tidy_generalized_pareto(), tidy_geometric(), tidy_inverse_burr(), tidy_inverse_exponential(), tidy_inverse_normal(), tidy_inverse_pareto(), tidy_inverse_weibull(), tidy_logistic(), tidy_lognormal(), tidy_normal(), tidy_paralogistic(), tidy_pareto(), tidy_pareto1(), tidy_t(), tidy_triangular(), tidy_uniform(), tidy_weibull(), tidy_zero_truncated_geometric()

Other Gamma: tidy_gamma(), util_gamma_param_estimate(), util_gamma_stats_tbl()

Other Inverse Distribution: tidy_inverse_burr(), tidy_inverse_exponential(), tidy_inverse_normal(), tidy_inverse_pareto(), tidy_inverse_weibull()