CODEWITHSUNDEEP
rplothistogram
David B
David B

Reputation: 29968

adjusting x-axis in R histograms

This histogram is really ugly:

hist(rbinom(10000, 20000, 0.0001),freq=F,right=F)

I don't want spaces between my bars. I tried different breaks= methods but they all produce similar results. Any ideas?

I also want each bin value (or mean values )to be printed under the center of it's bar.

Upvotes: 1

Views: 17364

Answers (4)

rcs
rcs

Reputation: 68809

Here is a way to center the labels:

x <- rbinom(1000, 2000, 0.001)
tmp <- hist(x, breaks=0:(max(x)+1), xaxt="n", right=FALSE, freq=FALSE)
axis(1, at=tmp$mids, labels=0:max(x))

Upvotes: 6

nico
nico

Reputation: 51640

Also:

x <- rbinom(10000, 20000, 0.0001)
hist(x, br = seq(-0.01, max(x)+1, 1), freq=F, col="black")

(the col="black" is not necessary, of course, I just find it more readeable in black!)

Upvotes: 0

mbq
mbq

Reputation: 18628

In such a case I usually use: 

 hist(rbinom(1000,2000,0.0001),breaks=function(x) length(unique(x)))

Upvotes: 2

kohske
kohske

Reputation: 66842

if the values are integer and simply you want to count up them, how about

barplot(table(rbinom(10000, 20000, 0.0001)))

Upvotes: 4

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