[R] Logical operator in R

[li li]

I see. Thanks!

2016-01-22 10:57 GMT-05:00 Rmh <rmh at temple.edu>:

> FAQ 7.31
>
> in this case subtract the two numbers and see that
> they differ by about 1e-16
>
> Sent from my iPhone
>
> > On Jan 22, 2016, at 10:46, li li <hannah.hlx at gmail.com> wrote:
> >
> > Hi all,
> >  I encountered the following strange phenomenon.
> > For some reason, the obs_p[1] and res1$st_p[89] have
> > the same value but when I run "==", it returns FALSE.
> > Can anyone help give some explanation on this?
> >  Thanks very much!
> >    Hanna
> >
> >> obs_p[1]
> > [1] 0.002201438
> >> res1$st_p[89]
> > [1] 0.002201438
> >> res1$st_p[89]==obs_p[1]
> > [1] FALSE
> >> res1$st_p[89]<obs_p[1]
> > [1] FALSE
> >> res1$st_p[89]>obs_p[1]
> > [1] TRUE
> >
> >    [[alternative HTML version deleted]]
> >
> > ______________________________________________
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> > PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> > and provide commented, minimal, self-contained, reproducible code.
>

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