R help - Apr 2010 - help in histogram

x<- sample(1:14, 319, rep=T)
hist(x, freq=F,  xlab='',ylab="Percent of Total",
col="skyblue",
labels=TRUE, right=FALSE,main="Position of Hypothetical Protein")

Is there is way to round the labels to 2 decimal digits, for example, 0.088
is changed to 0.09.

Thanks!

-- 
Sincerely,
Changbin
--

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Hi,

first get the densities without plotting the histogram:

foo <- hist(x, plot=FALSE)

then plot the histogram and feed the rounded densities, converted to 
character, to the labels argument (instead of just labels=TRUE):

hist(x, freq=F,  xlab='',ylab="Percent of Total",
col="skyblue",
labels=as.character(round(foo$density,2)), right=FALSE,main="Position of 
Hypothetical Protein")

HTH,
Stephan


Changbin Du schrieb:
> x<- sample(1:14, 319, rep=T)
> hist(x, freq=F,  xlab='',ylab="Percent of Total",
col="skyblue",
> labels=TRUE, right=FALSE,main="Position of Hypothetical Protein")
> 
> Is there is way to round the labels to 2 decimal digits, for example, 0.088
> is changed to 0.09.
> 
> Thanks!
>