[R] match() & seq()

Dimitris Rizopoulos dimitris.rizopoulos at med.kuleuven.be
Mon Jan 30 15:35:44 CET 2006

```the problem is in

0.3 == seq(0.1,1,by=0.1)[3]

versus

all.equal(0.3, seq(0.1,1,by=0.1)[3])

I hope it helps.

Best,
Dimitris

----
Dimitris Rizopoulos
Ph.D. Student
Biostatistical Centre
School of Public Health
Catholic University of Leuven

Tel: +32/(0)16/336899
Fax: +32/(0)16/337015
Web: http://www.med.kuleuven.be/biostat/
http://www.student.kuleuven.be/~m0390867/dimitris.htm

----- Original Message -----
From: "Jacques VESLOT" <jacques.veslot at cirad.fr>
To: <R-help at stat.math.ethz.ch>
Sent: Monday, January 30, 2006 3:19 PM
Subject: [R] match() & seq()

> sorry if it has already been discussed but i can't understand this:
>
> > seq(0.1,1,by=0.1)
> [1] 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
> > match(0.1,seq(0.1,1,by=0.1))
> [1] 1
> > match(0.2,seq(0.1,1,by=0.1))
> [1] 2
> > match(0.3,seq(0.1,1,by=0.1))
> [1] NA
> > match(0.4,seq(0.1,1,by=0.1))
> [1] 4
>
> > R.version
>         _
> platform i386-pc-mingw32
> arch     i386
> os       mingw32
> system   i386, mingw32
> status
> major    2
> minor    2.1
> year     2005
> month    12
> day      20
> svn rev  36812
> language R
>
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