gg.gap: Define Segments in y-Axis for 'ggplot2'

Description Usage Arguments Value Examples

View source: R/gg.gap.R

Description

Easy to define segments in y-axis for 'ggplot2'.

Usage

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gg.gap(plot, ylim, segments, tick_width, rel_heights, vjust = 0,
  margin = c(top = 1, right = 2, bottom = 1, left = 1), ...)

Arguments

plot

A 'ggplot2' plot.

ylim

The y-axis limits.

segments

The interval of a segment. If more than one intervals are given, please use list() to concatenate them.

tick_width

One or more numbers for each segmented y-axis.

rel_heights

Numerical vector of relative segmented y-axis and segments heights, default is 1 and 0.

vjust

Vertical justification. Default = 0 (baseline at y).

margin

Margins around the text.

...

Arguments will be handed to plot_grid() in 'cowplot'.

Value

A segmented picture.

Examples

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data(mtcars)
library(ggplot2)
p<-ggplot(data = mtcars, aes(x = gear, fill = gear)) +
    geom_bar() +
    ggtitle("Number of Cars by Gear") +
    xlab("Gears")

#single segments and missing tick_width
gg.gap(plot=p,
       segments=c(5,10),
       ylim=c(0,50))
#tick_width can be one or more numbers
gg.gap(plot=p,
       segments=c(5,10),
       tick_width = c(1,10),
       ylim=c(0,50))
#segments list cantains more than one number vectors
gg.gap(plot=p,
       segments=list(c(2.5,4),c(5,10)),
       tick_width = c(1,0.5,10),
       ylim=c(0,50))
#rel_heights can set the relative height for segments and segmented y-axis
gg.gap(plot=p,
       segments=list(c(2.5,4),c(5,10)),
       tick_width = c(1,0.5,10),
       rel_heights=c(0.2,0,0.2,0,1),
       ylim=c(0,50))
#reversed y-axis
p<-ggplot(data = mtcars, aes(x = gear, fill = gear)) +
    geom_bar() +
    ggtitle("Number of Cars by Gear") +
    xlab("Gears")+
    scale_y_continuous(trans = 'reverse')
#single segments and missing tick_width
gg.gap(plot=p,
       segments=c(10,5),
       ylim=c(15,0))

Example output

Scale for 'y' is already present. Adding another scale for 'y', which will
replace the existing scale.
Scale for 'y' is already present. Adding another scale for 'y', which will
replace the existing scale.

gg.gap documentation built on Sept. 30, 2019, 5:03 p.m.

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