On 2012-08-08 13:40, li li wrote:
Dear all,
I have a few extra questions regarding this. Below is my code.
My questions are:
(1), How can I remove the labels, tick marks and numbers, and the word
"density" for the histgrams.
Well, you have the solution in your code for the "empty" plot: use
opts(....). Just set axis.ticks, axis.text.?, axis.title.? to
theme_blank().
(2) On the top right corner, there is a empty grid. How can I remove it.
This too is on the help page for opts: add
panel.grid.minor = theme_blank() to your opts for "empty".
Peter Ehlers
Thank you in advance.
Hannah
require(ggplot2)
require(gridExtra)
x <- rnorm(10000,10, 2)
y <- rnorm(10000, 20, 6)
##x<-xbar
##y <- ybar
xy<-data.frame(x,y)
xhist <- ggplot(xy, aes(x=x)) +
geom_histogram(aes(y=..density..), fill="red", colour="black")+
geom_density(colour="black", adjust=4) +
opts(title="")
yhist <- ggplot(xy, aes(x=y)) +
geom_histogram(aes(y=..density..), fill="blue", colour="black")+
geom_density(colour="black", adjust=4) +
opts(title="") +
coord_flip()
none <- qplot(x,y, data=xy) + geom_blank()
empty <- ggplot()+geom_point(aes(1,1), colour="white")+
opts(axis.ticks=theme_blank(),
panel.background=theme_blank(),
axis.text.x=theme_blank(),
axis.text.y=theme_blank(),
axis.title.x=theme_blank(), axis.title.y=theme_blank())
grid.arrange(xhist, empty, none, yhist, ncol=2, nrow=2, widths=c(3, 1),
heights=c(1, 3))
2012/8/7 li li <hannah....@gmail.com>
Please ignore my previous message. The limits are correct.
Thanks again.
Hannah
2012/8/7 li li <hannah....@gmail.com>
Hi John,
Is it possible to set the xlim and ylim in the histograms. It seems
that the limits are not the true ranges.
Thanks.
Hannah
2012/8/7 li li <hannah....@gmail.com>
Thanks John.
2012/8/7 John Kane <jrkrid...@inbox.com>
I cannot see any obvious way to do this. Ben Gunter's suggestion re
layout makes sense. Here is a version using grid and ggplot2. Note I
shamelessly stole code to due it.
library(ggplot2)
library(grid)
dd <- data.frame(x = rnorm(1000, 10, 10),
y = rnorm(1000, 3, 20))
# From https://stat.ethz.ch/pipermail/r-help/2011-June/280588.html
p1 <- ggplot(dd, aes(x=x)) +
geom_histogram(aes(y=..density..), fill="red", colour="black")+
geom_density(colour="black", adjust=4) +
opts(title="Normal Random Sample")
p2 <- ggplot(dd, aes(x=y)) +
geom_histogram(aes(y=..density..), fill="blue", colour="black")+
geom_density(colour="black", adjust=4) +
opts(title="Normal Random Sample") +
coord_flip()
# From StackOverflow
http://stackoverflow.com/questions/9490482/combined-plot-of-ggplot2-not-in-a-single-plot-using-par-or-layout-functio
# this simplifies the vp statement
# otherwise we would have to use something like
# print(plot5 , vp = viewport(layout.pos.row = 2, layout.pos.col = 1:2))
# and so on for the rest of the plots.
vplayout <- function(x, y) viewport(layout.pos.row = x, layout.pos.col
= y)
grid.newpage()
pushViewport(viewport(layout = grid.layout(2, 1)))
print(p1, vp = vplayout(1, 1))
print(p2, vp = vplayout(2, 1))
John Kane
Kingston ON Canada
-----Original Message-----
From: hannah....@gmail.com
Sent: Mon, 6 Aug 2012 15:40:55 -0400
To: r-help@r-project.org
Subject: [R] Overlay Histogram
Dear all,
For two sets of random variables, say, x <- rnorm(1000, 10, 10)
and y
<- rnorm(1000. 3, 20).
Is there any way to overlay the histograms (and density curves) of x
and
y
on the plot of y vs. x?
The histogram of x is on the x axis and that of y is on the y axis.
The density curve here is to approximate the shape of the
distribution
and does not have to have area 1.
Thank you in advance.
Hannah
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and provide commented, minimal, self-contained, reproducible code.
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R-help@r-project.org mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
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