[R] Strange sprintf Behavior

[Marc Schwartz]

On Apr 2, 2014, at 6:32 AM, Michael Smith <my.r.help at gmail.com> wrote:

> All,
> 
> I'm getting this:
> 
>> sprintf("%.17f", 0.8)
> [1] "0.80000000000000004"
> 
> Where does the `4` at the end come from? Shouldn't it be zero at the
> end? Maybe I'm missing something.


Hi,

First, please start a new thread when posting, do not just reply to an existing thread and change the subject line. Your post gets lost in the archive and is improperly linked to other posts.

Second, see the Most Frequently Asked Question:

  http://cran.r-project.org/doc/FAQ/R-FAQ.html#Why-doesn_0027t-R-think-these-numbers-are-equal_003f

Regards,

Marc Schwartz