[R] Simple plotting errors
Simon Pickett
simon.pickett at bto.org
Mon May 18 13:35:00 CEST 2009
you mean you want to plot "SUM" against month? (assuming these12 data frames
are 12 months).
you could first bind them all together using data.frame(), see ?data.frame
which would make it much easier.
you need to create a variable for months then plot it against your variable.
If you dont want to make it easier with a data frame then you would have a
long piece of code as follows (assuming I have understood you correctly)
plot(seq(1:12),c(FeketeJAN$(SUM_)[row.names(FeketeJAN)=="AMAZON"],FeketeFEB$(SUM_)[row.names(FeketeFEB)=="AMAZON"]....etc))
Cheers, Si.
----- Original Message -----
From: "Steve Murray" <smurray444 at hotmail.com>
To: <r-help at r-project.org>
Sent: Monday, May 18, 2009 12:17 PM
Subject: [R] Simple plotting errors
>
> Dear R Users,
>
> I have 12 data frames, each of 12 rows and 2 columns.
>
> e.g. FeketeJAN
> MEAN SUM_
> AMAZON 144.4997874 68348.4
> NILE 5.4701955 1394.9
> CONGO 71.3670036 21196.0
> MISSISSIPPI 18.9273250 6511.0
> AMUR 1.8426874 466.2
> PARANA 58.3835497 13486.6
> YENISEI 1.4668313 592.6
> OB 1.4239179 559.6
> LENA 0.9342164 387.7
> NIGER 4.7245709 826.8
> ZAMBEZI 76.6893794 8665.9
> YANGTZE 10.6759257 1729.5
>
>
> I want to do a line plot of the value of Amazon 'Sum' (in this case,
> 68348.4) for each of the 12 data frames. I've tried doing this as follows:
>
> plot(FeketeJAN[1,2], FeketeFEB[1,2], FeketeMAR[1,2], *through to December*
> type="l")
>
> but receive: Error in strsplit(log, NULL) : non-character argument
>
>
> I've also tried:
>
> plot(FeketeJAN$AMAZON[,2], FeketeFEB$AMAZON[,2], *through to December*
> type="l")
>
> but receive:
>
> Error in plot.window(...) : need finite 'xlim' values
> In addition: Warning messages:
> 1: In min(x) : no non-missing arguments to min; returning Inf
> 2: In max(x) : no non-missing arguments to max; returning -Inf
> 3: In min(x) : no non-missing arguments to min; returning Inf
> 4: In max(x) : no non-missing arguments to max; returning -Inf
>
>
> What is it that I'm doing wrong?!
>
> Many thanks for any advice,
>
> Steve
>
>
>
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