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ggplot2 2.1.0

Help topicsGeomsGeoms, short for geometric objects, describe the type of plot you will produce.

geom_abline (geom_hline, geom_vline)

Lines: horizontal, vertical, and specified by slope and intercept.geom_bar (stat_count)

Bars, rectangles with bases on x-axis

geom_bin2d (stat_bin2d, stat_bin_2d)

Add heatmap of 2d bin counts.

geom_blank

Blank, draws nothing.

geom_boxplot (stat_boxplot)

Box and whiskers plot.

geom_contour (stat_contour)

Display contours of a 3d surface in 2d.

geom_count (stat_sum)

Count the number of observations at each location.

geom_crossbar (geom_errorbar, geom_linerange, geom_pointrange)

Vertical intervals: lines, crossbars & errorbars.

geom_density (stat_density)

Display a smooth density estimate.

geom_density_2d (geom_density2d, stat_density2d, stat_density_2d)

Contours from a 2d density estimate.

geom_dotplot

Dot plot

geom_errorbarh

Horizontal error bars

geom_freqpoly (geom_histogram, stat_bin)Histograms and frequency polygons.

geom_hex (stat_bin_hex, stat_binhex)

Hexagon binning.

geom_jitter

Points, jittered to reduce overplotting.

geom_label (geom_text)

Textual annotations.

geom_map

Polygons from a reference map.

geom_path (geom_line, geom_step)

Connect observations.

geom_point

Points, as for a scatterplot

geom_polygon

Polygon, a filled path.

geom_quantile (stat_quantile)

Add quantile lines from a quantile regression.

geom_raster (geom_rect, geom_tile)

Draw rectangles.

geom_ribbon (geom_area)

Ribbons and area plots.

geom_rug

Marginal rug plots.geom_segment (geom_curve)

Line segments and curves.

geom_smooth (stat_smooth)

Add a smoothed conditional mean.

Index

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geom_violin (stat_ydensity)

Violin plot.

StatisticsIt's often useful to transform your data before plotting, and that's what statistical transformations do.

stat_ecdf

Empirical Cumulative Density Function

stat_ellipse

Plot data ellipses.

stat_functionSuperimpose a function.

stat_identity

Identity statistic.

stat_qq (geom_qq)

Calculation for quantile-quantile plot.

stat_summary_2d (stat_summary2d, stat_summary_hex)

Bin and summarise in 2d (rectangle & hexagons)

stat_unique

Remove duplicates.

Scales

Scales control the mapping between data and aesthetics.expand_limits

Expand the plot limits with data.

guides

Set guides for each scale.

guide_legend

Legend guide.

guide_colourbar (guide_colorbar)

Continuous colour bar guide.

lims (xlim, ylim)

Convenience functions to set the axis limits.

scale_alpha (scale_alpha_continuous, scale_alpha_discrete)

Alpha scales.

scale_colour_brewer (scale_color_brewer, scale_color_distiller, scale_colour_distiller, scale_fill_brewer, scale_fill_distiller)

Sequential, diverging and qualitative colour scales from colorbrewer.org

scale_colour_gradient (scale_color_continuous, scale_color_gradient, scale_color_gradient2, scale_color_gradientn,

scale_colour_continuous, scale_colour_date, scale_colour_datetime, scale_colour_gradient2, scale_colour_gradientn, scale_fill_continuous,

scale_fill_date, scale_fill_datetime, scale_fill_gradient, scale_fill_gradient2, scale_fill_gradientn)

Smooth gradient between two colours

scale_colour_grey (scale_color_grey, scale_fill_grey)

Sequential grey colour scale.

scale_colour_hue (scale_color_discrete, scale_color_hue, scale_colour_discrete, scale_fill_discrete, scale_fill_hue)

Qualitative colour scale with evenly spaced hues.

scale_identity (scale_alpha_identity, scale_color_identity, scale_colour_identity, scale_fill_identity, scale_linetype_identity,

scale_shape_identity, scale_size_identity)

Use values without scaling.

scale_manual (scale_alpha_manual, scale_color_manual, scale_colour_manual, scale_fill_manual, scale_linetype_manual,

scale_shape_manual, scale_size_manual)

Create your own discrete scale.

scale_linetype (scale_linetype_continuous, scale_linetype_discrete)

Scale for line patterns.

scale_shape (scale_shape_continuous, scale_shape_discrete)

Scale for shapes, aka glyphs.

scale_size (scale_radius, scale_size_area, scale_size_continuous, scale_size_date, scale_size_datetime, scale_size_discrete)

Scale size (area or radius).

scale_x_discrete (scale_y_discrete)Discrete position.

labs (ggtitle, xlab, ylab)

Change axis labels and legend titles

update_labels

Update axis/legend labels

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Coordinate systemsCoordinate systems adjust the mapping from coordinates to the 2d plane of the computer screen.

coord_cartesian

Cartesian coordinates.

coord_fixed (coord_equal)

Cartesian coordinates with fixed relationship between x and y scales.

coord_flip

Flipped cartesian coordinates.

coord_map (coord_quickmap)

Map projections.

coord_polar

Polar coordinates.

coord_trans

Transformed cartesian coordinate system.

FacetingFacets display subsets of the dataset in different panels.

facet_grid

Lay out panels in a grid.

facet_null

Facet specification: a single panel.

facet_wrap

Wrap a 1d ribbon of panels into 2d.

labeller

Generic labeller function for facets

label_bquote

Backquoted labeller

Position adjustmentsPosition adjustments can be used to fine tune positioning of objects to achieve effects like dodging, jittering and stacking.

position_dodge

Adjust position by dodging overlaps to the side.

position_fill (position_stack)Stack overlapping objects on top of one another.

position_identity

Don't adjust position

position_nudge

Nudge points.

position_jitter

Jitter points to avoid overplotting.

position_jitterdodge

Adjust position by simultaneously dodging and jittering

Data

Data sets included in ggplot2 and used in examplesdiamonds

Prices of 50,000 round cut diamonds

economics (economics_long)

US economic time series.

faithfuld

2d density estimate of Old Faithful data

luv_colours

colors()

midwest

Midwest demographics.

mpg

Fuel economy data from 1999 and 2008 for 38 popular models of car

msleep

An updated and expanded version of the mammals sleep dataset.

presidential

Terms of 11 presidents from Eisenhower to Obama.

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theme_update (theme_get, theme_replace, theme_set)

Get, set and update themes.

Plot creationggplot (ggplot.data.frame, ggplot.default)

Create a new ggplot plot.

qplot (quickplot)

Quick plot

+.gg (%+%, %+replace%)

Add a new component to a ggplot or theme object.

autoplot

Create a complete ggplot appropriate to a particular data type

is.ggplot

Reports whether x is a ggplot object

print.ggplot (plot.ggplot)

Draw plot on current graphics device.

Aestheticsaes

Define aesthetic mappings.

aes_ (aes_q, aes_string)

Define aesthetic mappings from strings, or quoted calls and formulas.

aes_all

Given a character vector, create a set of identity mappings

aes_auto

Automatic aesthetic mapping

aes_colour_fill_alpha (color, colour, fill)

Colour related aesthetics: colour, fill and alpha

aes_group_order (group)

Aesthetics: group

aes_linetype_size_shape (linetype, shape, size)

Differentiation related aesthetics: linetype, size, shape

aes_position (x, xend, xmax, xmin, y, yend, ymax, ymin)

Position related aesthetics: x, y, xmin, xmax, ymin, ymax, xend, yend

ggprotoggproto (ggproto_parent)

Create a new ggproto object

print.ggproto

Print a ggproto object

is.ggproto

Is an object a ggproto object?

format.ggproto

Format a ggproto object

Otheras_labeller

Coerce to labeller function

as.list.ggproto

Convert a ggproto object to a list

cut_interval (cut_number, cut_width)

Cut up numeric vector into useful groups.

geom_spoke (stat_spoke)

A line segment parameterised by location, direction and distance.

ggsave

Save a ggplot (or other grid object) with sensible defaults

graphical-units (.pt, .stroke)

Graphical units

hmisc (mean_cl_boot, mean_cl_normal, mean_sdl, median_hilow)

Wrap up a selection of summary functions from Hmisc to make it easy to use

labellers (label_both, label_context, label_parsed, label_value, label_wrap_gen)

Labeller functions

last_plot

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Back to top

Retrieve the last plot to be modified or created.

layer

Create a new layer

mean_se

Calculate mean and standard errors on either side.

resolution

Compute the "resolution" of a data vector.

scale_continuous (scale_x_continuous, scale_x_log10, scale_x_reverse, scale_x_sqrt, scale_y_continuous, scale_y_log10, scale_y_reverse,

scale_y_sqrt)

Continuous position scales (x & y).scale_date (scale_x_date, scale_x_datetime, scale_y_date, scale_y_datetime)

Position scale, date & date times

stat_summary_bin (stat_summary)

Summarise y values at unique/binned x x.

translate_qplot_ggplot

Translating between qplot and ggplot

translate_qplot_lattice

Translating between qplot and lattice

update_geom_defaults (update_stat_defaults)

Modify geom/stat aesthetic defaults for future plots

VignettesExtending ggplot2

Aesthetic specifications

DependenciesImports: digest, grid, gtable, MASS, plyr, reshape2, scales, stats

Suggests: covr, ggplot2movies, hexbin, Hmisc, lattice, mapproj, maps, maptools, mgcv, multcomp, nlme, testthat, quantreg, knitr, rpart, rmarkdown,

svglite

AuthorsHadley Wickham[aut, cre]

Winston Chang[aut]

RStudio [cph]

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