geom_prior {BayesTools}

Add prior object to a ggplot

Description

Add prior object to a ggplot

Usage

geom_prior(
  x,
  xlim = NULL,
  x_seq = NULL,
  x_range_quant = NULL,
  n_points = 1000,
  n_samples = 10000,
  force_samples = FALSE,
  transformation = NULL,
  transformation_arguments = NULL,
  transformation_settings = FALSE,
  show_parameter = if (individual) 1 else NULL,
  individual = FALSE,
  rescale_x = FALSE,
  scale_y2 = 1,
  ...
)

Arguments

x

a prior

xlim

plotting range of the prior

x_seq

sequence of x coordinates

x_range_quant

quantile used for automatically obtaining x_range if both x_range and x_seq are unspecified. Defaults to 0.005 for all but Cauchy, Student-t, Gamma, and Inverse-gamme distributions that use 0.010.

n_points

number of equally spaced points in the x_range if x_seq is unspecified

n_samples

number of samples from the prior distribution if the density cannot be obtained analytically (or if samples are forced with force_samples = TRUE)

force_samples

should prior be sampled instead of obtaining analytic solution whenever possible

transformation

transformation to be applied to the prior distribution. Either a character specifying one of the prepared transformations:

lin

linear transformation in form of a + b*x

tanh

also known as Fisher's z transformation

exp

exponential transformation

, or a list containing the transformation function fun, inverse transformation function inv, and the Jacobian of the transformation jac. See examples for details.

transformation_arguments

a list with named arguments for the transformation

transformation_settings

boolean indicating whether the settings the x_seq or x_range was specified on the transformed support

show_parameter

which parameter should be returned in case of multiple parameters per prior. Useful when priors for the omega parameter are plotted and individual = TRUE.

individual

should individual densities be returned (e.g., in case of weightfunction)

rescale_x

allows to rescale x-axis in case a weightfunction is plotted.

scale_y2

scaling factor for a secondary axis

...

additional arguments

Value

geom_prior_list returns an object of class 'ggplot'.

See Also

plot.prior() lines.prior()