CODEWITHSUNDEEP
rboxplot
Dinesh
Dinesh

Reputation: 663

Boxplots from 3 different datasets in R

I have data from 3 different studies. Study A has 21 samples, StudyB has 9 samples and Study C has 12 samples. Now I want to see the value distribution all samples plotted using Boxplots in R. I used the following command

boxplot(A,add=F,at=1:21)
boxplot(B,add=T,at=22:30)
boxplot(C,add=T,at=31:42)

I can only see the 21 samples from study A while 9 samples from Study B and 12 samples from Study C are not visible and they are not fitting into the frame. I want all 42 samples from all Studies in a single frame.

Upvotes: 1

Views: 17279

Answers (2)

Thomas
Thomas

Reputation: 44555

Use the formula option in boxplot:

A <- rnorm(21)
B <- rnorm(9)
C <- rnorm(12)
mydf <- data.frame(y=c(A,B,C),x=c(rep(1,length(A)),rep(2,length(B)),rep(3,length(C))))
with(mydf, boxplot(y~x))

sample plot

Upvotes: 2

sgibb
sgibb

Reputation: 25736

You might have a look at the xlim argument of boxplot (otherwise your B and C data.frame are outside the plot area):

set.seed(1)
a <- rnorm(100)
b <- rnorm(100)

boxplot(a, at=1, xlim=c(0, 3))
boxplot(b, at=2, add=TRUE)

boxplots

Upvotes: 4

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