[R] improving a bar graph

[John Kane]

Ugly brute-force approach:  col=1:16 .   Jim Lemon's
approach with Plotrix is much nicer.  You might also
want to have a look at RColorBrewer though I am not
sure how easily it can handle 16 different colours.


barplot(dft, beside = TRUE, main= "Risk score by
assessment", xlab = " Score", ylab = "frequency",
col=1:16)

--- Bob Green <bgreen at dyson.brisnet.org.au> wrote:

> Hello,
> 
> Below is the code for a basic bar graph. I was
> seeking advice 
> regarding the following:
> 
> (a)  For each time period there are values from 16
> people. How I can 
> change the colour value so that each person has a
> different colour, 
> which recurs across each of the three graphs/tie
> epriods?
> 
> (b) I have seen much more sophisticated examples
> using lattice (e.g 
> each person has a separate panel/plot). I am open to
> alternative code 
> as to how I could present this data.
> 
> Time1 <-
>
c(9.0,6.0,1.0,5.0,7.0,9.0,5.0,7.5,6.0,8.0,5.0,5.0,9.0,4.0,5.0,5.0)
> Time2 <- c (10,5,3,3,3,6,7,8,5,8,7,7,9,8,5,3)
> Time3 <- c (10,0,3,0,0,6,0,0,0,0,0,0,0,0,0,0)
> df  <- rbind  (Time1, Time2, Time3)
> dft <- (t(df))
> dft
> barplot(dft, beside = TRUE, main= "Risk score by
> assessment", xlab = 
> " Score", ylab = "frequency", col="blue")
> 
> 
> Any assistance is much appreciated,
> 
> regards
> 
> Bob Green
> 
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