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82 lines
2.9 KiB
82 lines
2.9 KiB
% Generated by roxygen2: do not edit by hand
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% Please edit documentation in R/geom_ubar.r
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\name{geom_ubar}
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\alias{geom_ubar}
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\title{Uniform "bar" charts}
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\usage{
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geom_ubar(mapping = NULL, data = NULL, stat = "identity",
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position = "identity", ..., na.rm = FALSE, show.legend = NA,
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inherit.aes = TRUE)
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}
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\arguments{
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\item{mapping}{Set of aesthetic mappings created by \code{\link[=aes]{aes()}} or
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\code{\link[=aes_]{aes_()}}. If specified and \code{inherit.aes = TRUE} (the
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default), it is combined with the default mapping at the top level of the
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plot. You must supply \code{mapping} if there is no plot mapping.}
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\item{data}{The data to be displayed in this layer. There are three
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options:
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If \code{NULL}, the default, the data is inherited from the plot
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data as specified in the call to \code{\link[=ggplot]{ggplot()}}.
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A \code{data.frame}, or other object, will override the plot
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data. All objects will be fortified to produce a data frame. See
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\code{\link[=fortify]{fortify()}} for which variables will be created.
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A \code{function} will be called with a single argument,
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the plot data. The return value must be a \code{data.frame.}, and
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will be used as the layer data.}
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\item{stat}{The statistical transformation to use on the data for this
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layer, as a string.}
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\item{position}{Position adjustment, either as a string, or the result of
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a call to a position adjustment function.}
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\item{...}{other arguments passed on to \code{layer}. These are
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often aesthetics, used to set an aesthetic to a fixed value, like
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\code{color = "red"} or \code{size = 3}. They may also be parameters
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to the paired geom/stat.}
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\item{na.rm}{If \code{FALSE} (the default), removes missing values with
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a warning. If \code{TRUE} silently removes missing values.}
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\item{show.legend}{logical. Should this layer be included in the legends?
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\code{NA}, the default, includes if any aesthetics are mapped.
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\code{FALSE} never includes, and \code{TRUE} always includes.
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It can also be a named logical vector to finely select the aesthetics to
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display.}
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\item{inherit.aes}{If \code{FALSE}, overrides the default aesthetics,
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rather than combining with them. This is most useful for helper functions
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that define both data and aesthetics and shouldn't inherit behaviour from
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the default plot specification, e.g. \code{\link[=borders]{borders()}}.}
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}
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\description{
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I've been using \code{geom_segment} more to make "bar" charts, setting
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\code{xend} to whatever \code{x} is and \code{yend} to \code{0}. The bar widths remain
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constant without any tricks and you have granular control over the
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segment width. I decided it was time to make a \code{geom}.
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}
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\section{Aesthetics}{
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`geom_ubar`` understands the following aesthetics (required aesthetics are in bold):
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\itemize{
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\item \strong{\code{x}}
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\item \strong{\code{y}}
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\item \code{alpha}
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\item \code{colour}
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\item \code{group}
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\item \code{linetype}
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\item \code{size}
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}
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}
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\examples{
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library(ggplot2)
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data(economics)
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ggplot(economics, aes(date, uempmed)) +
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geom_ubar()
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}
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