Want to share your content on R-bloggers? click here if you have a blog, or here if you don't.

This post is minimalistic.
Consider this:

x <- 2.0000001


Now let's have look at what's inside x:

x
> [1] 2


But is it really true?

x==2
> [1] FALSE


Here you go.
A colleague of mine was once ruined by this for an entire day before we realized what was going on.
So, how to find out what REALLY is the value of x?
Try:

as.character(x)
> [1] "2.0000001"