[R] The elegant way to test if a number is a whole number

[Alexander Engelhardt]

Hi,

     x <- 0.2*5
     is.integer(x)

gives me FALSE because R stores it as a float number, right?
Is there an elegant way to work around that problem? Right now
I'm using

     x <- 0.2*5
     round(x) == x

which returns TRUE. But more strictly I should use all.equal(),
right?

I somehow just don't like the--pardon--ugliness of those pieces
of code. Maybe there is a beautiful way to write that. If not,
no big problem -- I just like beautiful code :-)

Cheers,
  Alex