Q:

How to use as.hexmode width

According to the R documentation:
as.hexmode(x)

## S3 method for class 'hexmode'
as.character(x, ...)

## S3 method for class 'hexmode'
format(x, width = NULL, upper.case = FALSE, ...)

## S3 method for class 'hexmode'
print(x, ...)

Arguments
x  An object, for the methods inheriting from class "hexmode".
width  NULL or a positive integer specifying the minimum field width
  to be used, with padding by leading zeroes.

If I call in R 3.02:
> hex <- "5"
> as.hexmode(hex,width=2)

I get the error:
Error in as.hexmode(hex, width = 2) : unused argument (width = 2)

How do I call as.hexmode correctly?

A:

The width parameter belongs to format (well, format.hexmode), not as.hexmode:
format(as.hexmode(hex), width=2)

