range() is not affected by by options("na.action"). Use
the argument na.rm=TRUE. For plotting purposes finite=TRUE
is nice, as it skips +-Inf as well.
> range(c(NA, 1, 2, Inf))
[1] NA NA
> range(c(NA, 1, 2, Inf), na.rm=TRUE)
[1] 1 Inf
> range(c(NA, 1, 2, Inf), finite=TRUE)
[1] 1 2
Bill Dunlap
Spotfire, TIBCO Software
wdunlap tibco.com
> -----Original Message-----
> From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On
> Behalf Of Colin Wahl
> Sent: Wednesday, February 01, 2012 4:48 PM
> To: r-help@r-project.org
> Subject: [R] Problem with range()
>
> Hello,
> I'm using range do define boundaries for a linear model, so the line I
> graph is only graphed for the range of data. There are NAs in the
> data, but I dont remember this being a problem before. I typed
> na.action=na.omit anyway, which has usually solved any NA issues in
> the past. Any idea why R cant do vector functions for these data?
> Solution?
>
> Thanks,
> Colin Wahl
> M.S. Biology candidate
> Western Washington University
>
> fit<-lm(sandcomb ~ CCEC25)
> z<-predict(fit, data.frame(CCEC25=range(CCEC25)))
> lines(range(CCEC25), z, lty=2, lwd=0.75, col="grey51")
>
>
> > is.vector(CCEC25)
> [1] TRUE
>
> > is.numeric(CCEC25)
> [1] TRUE
>
> > range(CCEC25)
> [1] NA NA
>
> > CCEC25
> [1] 375.8 8769.0 NA 4197.0 NA 36880.0 4167.0 13100.0 3694.0
> [10] 51420.0 30660.0 30850.0 4076.0 NA 59450.0 16050.0 NA 65480.0
> [19] 2101.0 16390.0 5968.0 11330.0 9112.0 8326.0
>
> > sessionInfo()
> R version 2.14.1 (2011-12-22)
> Platform: i386-apple-darwin9.8.0/i386 (32-bit)
>
> locale:
> [1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8
>
> attached base packages:
> [1] stats graphics grDevices utils datasets methods base
>
> loaded via a namespace (and not attached):
> [1] grid_2.14.1 lattice_0.20-0 lme4_0.999375-42 Matrix_1.0-2
> [5] nlme_3.1-102 stats4_2.14.1 tools_2.14.1
>
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> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
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