[R] improving barplot output

[Chuck Cleland]

Bob Green wrote:
> Hello,
> 
> I was hoping for some advice on improving a barplot. Below is the syntax I 
> have used. I wanted to do two things differently How would I alter the 
> syntax so that (a) the y-axis finishes at 25 and not 20, and (b) 'past 
> ideation' and 'pastwk ideation' are coloured blue and 'past attempt' & 
> 'past wk attempt' are coloured red ?
> 
> I was also curious as to whether it is possible to insert values into the 
> respective bars?
> 
>> summarizedData = c(24,4,7,1.9)
>> theNames = c("Past ideation","Past attempt", "Pastwk idea","Past wk attempt")
>> names(summarizedData) = theNames
>> barplot(summarizedData, ylab = "percentage", col="dark red")
> 
> Any assistance is appreciated,

X <- barplot(c(24,4,7,1.9), ylab="Percentage",
             col=c("dark blue","dark red"),
             ylim=c(0,25),
             names.arg = c("Past ideation","Past attempt",
                           "Pastwk idea","Past wk attempt"))

text(x=X, y=c(24,4,7,1.9) - 0.5, labels=c(24,4,7,1.9), col="white")

> regards
> 
> Bob Green
> 
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-- 
Chuck Cleland, Ph.D.
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