[R] plot

[Chuck Cleland]

XinMeng wrote:
> Hello sir:
> a data with 2 columns:
> id x
> a  1
> b  2
> c  3
> 
> I wanna get such kind of plot:
> x: a b c
> y:1 2 3
> 
> But the plot command doesn't permit string character as x.
> 
> How can I get it ?

  What sort of plot do you want?  For a barplot() of x with bars labeled
by id you could do this:

df <- data.frame(id = c("a","b","c"), x = 1:3, stringsAsFactors=FALSE)
with(df, barplot(x, names.arg = id))

> Thanks a lot !
> 
> My best
> 
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-- 
Chuck Cleland, Ph.D.
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