create.histogram: Create histogram.

In rdeborja/plotting.general: Plotting functions using ggplot2.

Description

Create a histogram using the ggplot2 framework.

Usage

create.histogram(data = NULL, x = NULL, xlab = NULL, ylab = NULL, binwidth = NULL, group = NULL, group.col = FALSE, group.row = FALSE, filename = NULL, resolution = 1200, width = 8, height = 8, theme = NULL)

Arguments

data	data frame containing the data
x	data frame column name to use in histogram, must be passed as a string
xlab	label for the x-axis
ylab	label for the y-axis
binwidth	unit width for binning
group	Dataframe element to use to group bars using facet_grid()
group.col	Boolean to group data for facet_grid() by column
group.row	Boolean to group data for facet_grid() by row
filename	filename to save plot to, if none is provided, plot goes to STDOUT
resolution	the resolution of the plot to be passed to write.plot
width	plot width
height	plot height
theme	a ggplot2 theme

Author(s)

Richard de Borja <[e-mail]>

Examples

# create a simple histogram
create.histogram(
  data = mtcars,
  x = 'hp',
  binwidth = 50
  )
  
# add custom X and Y axis labels
create.histogram(
  data = mtcars,
  x = 'gear',
  binwidth = 1,
  xlab = 'Number of Gears',
  ylab = 'Frequency'
  )

rdeborja/plotting.general documentation built on May 27, 2019, 3:05 a.m.