Linux-Windows problem

Sorry for asking the obvious, but have you confirmed that you are
running the same version of R on both systems?

/H

On Tue, Jul 6, 2010 at 2:11 PM, Bos, Roger<roger.bos at rothschild.com>  wrote:

Uwe,

I suspect I might be having a similar problem as the R code I generate
in Windows editor (Tinn-R) doesn't always open properly in my Linux
editor (Rkward), but I don't know how to change the default encoding in
either one.

In R on both machines, getOption("encoding") returns "native.enc", so
the problem is not with R, but rather at the OS or editor level.  If you
or anyone could help me out that would be appreciated.

Thanks,

Roger

-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org]
On Behalf Of Uwe Ligges
Sent: Monday, July 05, 2010 10:04 AM
To: Ildiko Varga
Cc: r-help at r-project.org
Subject: Re: [R] Linux-Windows problem



On 05.07.2010 14:31, Ildiko Varga wrote:

Dear All,

I faced the following problem. With the same data.frame the results
are different under Linux and Windows.
Could you help on this topic?

I guess you read in the data differently since you have different
default encodings on both platforms (e.g. latin1 vs. UTF-8) and you data
is probably not plain ASCII.

Best,
Uwe Ligges

Thanks in advance,
Ildiko

Linux:

   >    d = read.csv("CRP.csv")
   >    d$drugCode = as.numeric(d$drug)
   >    cor(d, use="pairwise.complete.obs")

             PATIENT     BL.CRP   X24HR.CRP   X48HR.CRP drug   drugCode
PATIENT        NA         NA          NA          NA   NA         NA
BL.CRP         NA  1.0000000  0.84324880 -0.05699590   NA -0.3367147
X24HR.CRP      NA  0.8432488  1.00000000 -0.06162383   NA -0.3557316
X48HR.CRP      NA -0.0569959 -0.06162383  1.00000000   NA  0.1553356
drug           NA         NA          NA          NA   NA         NA
drugCode       NA -0.3367147 -0.35573159  0.15533562   NA  1.0000000
Warning message:
In cor(d, use = "pairwise.complete.obs") : NAs introduced by coercion

   >    str(d)

'data.frame':   41 obs. of  6 variables:
    $ PATIENT  : Factor w/ 41 levels "RV13","RV14",..: 2 3 4 6 7 12 13
14
15 17 ...
    $ BL.CRP   : num  7.3 31.2 4.2 6.7 1.6 7.7 5.3 38.9 1 7.3 ...
    $ X24HR.CRP: num  6.1 24.9 11.1 4.9 1 5 3.7 18 1 7.3 ...
    $ X48HR.CRP: num  121.5 40 28.4 34.5 33.3 ...
    $ drug     : Factor w/ 2 levels "active","placebo": 1 1 1 1 1 1 1 1

1

1 ...
    $ drugCode : num  1 1 1 1 1 1 1 1 1 1 ...

           Windows:

   >    d = read.csv("CRP.csv")
   >    d$drugCode = as.numeric(d$drug)
   >    cor(d, use="pairwise.complete.obs") Error in cor(d, use =

"pairwise.complete.obs") : 'x' must be numeric

   >    str(d)

'data.frame':   41 obs. of  6 variables:
    $ PATIENT  : Factor w/ 41 levels "RV13","RV14",..: 2 3 4 6 7 12 13
14
15 17 ...
    $ BL.CRP   : num  7.3 31.2 4.2 6.7 1.6 7.7 5.3 38.9 1 7.3 ...
    $ X24HR.CRP: num  6.1 24.9 11.1 4.9 1 5 3.7 18 1 7.3 ...
    $ X48HR.CRP: num  121.5 40 28.4 34.5 33.3 ...
    $ drug     : Factor w/ 2 levels "active","placebo": 1 1 1 1 1 1 1 1

1

1 ...
    $ drugCode : num  1 1 1 1 1 1 1 1 1 1 ...

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