statar (version 0.4.0)

stat_binmean: Plot the mean of y over the mean of x within bins of x.

Description

Plot the mean of y over the mean of x within bins of x.

Usage

stat_binmean(mapping = NULL, data = NULL, geom = "point",
  position = "identity", show.legend = NA, inherit.aes = TRUE,
  na.rm = FALSE, n = 20, ...)

Arguments

mapping

The aesthetic mapping, usually constructed with aes or aes_string. Only needs to be set at the layer level if you are overriding the plot defaults.

data

A layer specific dataset - only needed if you want to override the plot defaults.

geom

The geometric object to use display the data

position

The position adjustment to use for overlapping points on this layer

show.legend

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. This is most useful for helper functions that define both data and aesthetics and shouldn't inherit behaviour from the default plot specification, e.g.

na.rm

If FALSE (the default), removes missing values with a warning. If TRUE silently removes missing values.

n

number of x-bins. Default to 20. Set to zero if you want to use distinct value of x for grouping.

...

other arguments passed on to layer. This can include aesthetics whose values you want to set, not map. See layer for more details.

Value

• a data.frame with additional columns:
• xtile
  bins for x
• x
  mean of x
• y
  mean of y

Examples

library(ggplot2)
g <- ggplot(iris, aes(x = Sepal.Width , y = Sepal.Length))
g + stat_binmean(n = 10)
g + stat_binmean(n = 10) + stat_smooth(method = "lm", se = FALSE)
g + stat_binmean(n = 0)
g <- ggplot(iris, aes(x = Sepal.Width , y = Sepal.Length, color = Species))
g + stat_binmean(n = 10)
g + stat_binmean(n = 10) + stat_smooth(method = "lm", se = FALSE)