stat_fitdistr {ggformula}

A stat for fitting distributions

Description

This stat computes points for plotting a distribution function. Fitting is done using MASS::fitdistr() when analytic solutions are not available.

Usage

stat_fitdistr(
  mapping = NULL,
  data = NULL,
  geom = "path",
  position = "identity",
  na.rm = FALSE,
  show.legend = NA,
  inherit.aes = TRUE,
  dist = "dnorm",
  start = NULL,
  ...
)

Arguments

mapping

Aesthetics created using aes() or aes_string().

data

A data frame.

geom

A character string naming the geom used to make the layer.

position

Either a character string naming the position function used for the layer or a position object returned from a call to a position function.

na.rm

If TRUE, do not emit a warning about missing data.

show.legend

A logical. Should this layer be included in the legends? NA, the default, includes if any aesthetics are mapped. FALSE never includes, and TRUE always includes.

inherit.aes

If FALSE, overrides the default aesthetics, rather than combining with them.

dist

A character string indicating the distribution to fit. Examples include "dnorm", "dgamma", etc.

start

A list of starting values used by MASS::fitdistr() when numerically approximating the maximum likelihood estimate.

...

Additional arguments.

Value

A gg object