ggformula: stat_fitdistr – R documentation

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stat_fitdistr

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

ggformula

Formula Interface to the Grammar of Graphics

v0.10.1

MIT + file LICENSE

Authors

Daniel Kaplan [aut], Randall Pruim [aut, cre]

Initial release