multiplot: Multiple plot function

In cboettig/cboettigR: A collection of useful functions and utilities I commonly use

Description

Multiple plot function

Usage

multiplot(..., plotlist = NULL, file, cols = 1, layout = NULL)

Arguments

...	ggplot objects (as a list of ggplot objects)
plotlist	alternate input of a list of ggplot objects
file	(argument not used currently)
cols	Number of columns in layout
layout	A matrix specifying the layout. If present, 'cols' is ignored.

Details

If the layout is something like matrix(c(1,2,3,3), nrow=2, byrow=TRUE), then plot 1 will go in the upper left, 2 will go in the upper right, and 3 will go all the way across the bottom.

Adapted from: http://www.cookbook-r.com/Graphs/Multiple_graphs_on_one_page_(ggplot2)

Value

the plot object

Author(s)

Winston Chang <[e-mail]>

Examples

library(ggplot2)

# This example uses the ChickWeight dataset, which comes with ggplot2
# First plot
p1 <-
    ggplot(ChickWeight, aes(x=Time, y=weight, colour=Diet, group=Chick)) +
    geom_line() +
    ggtitle("Growth curve for individual chicks")

# Second plot
p2 <-
    ggplot(ChickWeight, aes(x=Time, y=weight, colour=Diet)) +
    geom_point(alpha=.3) +
    geom_smooth(alpha=.2, size=1) +
    ggtitle("Fitted growth curve per diet")

# Third plot
p3 <-
    ggplot(subset(ChickWeight, Time==21), aes(x=weight, colour=Diet)) +
    geom_density() +
    ggtitle("Final weight, by diet")

# Fourth plot
p4 <-
    ggplot(subset(ChickWeight, Time==21), aes(x=weight, fill=Diet)) +
    geom_histogram(colour="black", binwidth=50) +
    facet_grid(Diet ~ .) +
    ggtitle("Final weight, by diet") +
    theme(legend.position="none")

cboettig/cboettigR documentation built on May 13, 2019, 2:06 p.m.