[R] Why does plot() ignore the data type for axis labels?

[Stiffler]

Gavin Simpson wrote:
> 
>> PS what's the right way to get integer labels?
> 
> Do them by hand, if they are (numeric) integers
> 
>> plot(x,y, axes = FALSE)
>> axis(2)
>> axis(1, at = x)
>> box()
> 
> You could try writing your own Axis.integer function if doing the extra
> steps is a pain - something like:
> 
> Axis.integer <- function(x = NULL, at = NULL, ..., side, labels = NULL) 
> {
>     at <- unique(x)
>     labels <- as.character(at)
>     axis(side = side, at = unique(x), labels = labels, ...)
> }
> 
> which works in these case,
> 
> y2 <- runif(3)
> plot(x, y)
> plot(x, y2)
> 
> But is far from bullet proof and is not guaranteed to work in all
> situations.
> 
> HTH
> 

Thanks Gavin, I'll give that a try.


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