[R] Numbers as symbols

[Julian Taylor]

Nick Drew wrote:
> 
> I want to use question numbers from my survey data
> (fake data below) as markers in a scatterplot. I'm
> using "as.character" to convert question numbers to
> characters. However, plot truncates the 0 (zero) off
> of question 10. How can I get the ending zero so I can
> add questions 11 - 20?
> 
> # Sample code below
> Question <- c(1,2,3,4,5,6,7,8,9,10)
> Performance <-
> c(3.5,3.6,3.7,3.8,3.9,4,4.1,4.2,4.3,4.4)
> Importance <-
> c(0.1,0.2,0.3,0.4,0.5,0.6,0.7,0.8,0.9,0.99)
> Survey <-
> data.frame(cbind(Question,Performance,Importance))

Change the plot commands to this:

> nums <-as.character(Question)
> plot(Performance, Importance, xlab='Graph', ylab='', axes=T, type = "n")
> text(Performance, Importance, nums)

The inclusion of the rest of the question numbers, 11-20, can be done
identically.

hth,
Julian

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Julian Taylor			phone: +61 8 8303 6751
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University of Adelaide/SARDI    email: julian.taylor at adelaide.edu.au
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