[R] how to change number of characters per line for print() to sink()?

[jim holtman]

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On Mon, Nov 22, 2010 at 7:22 AM, Nevil Amos <nevil.amos at gmail.com> wrote:
> I am using r to read and reformat data that is then saved to a text file
> using sink(), the file has a number of initial lines of comments and summary
> data followed by print of a data.frame with no row names.
> for example
>
> a<-c(100:120)
> b<-c(rnorm(100:120))
> c<-c(rnorm(200:220))
> mydata<-data.frame(rbind(a,b,c))
> sink("datafile.txt")
>
> cat("comments about my data \n")
> cat("other calculations returned as separate text comments on a line \n")
> print(mydata,row.names=F)
> sink()
>
>
> I need the content of the text file to keep each row of the data frame on a
> single line thus (with intervening columns present of course)
>
> "datafile.txt"
>
> comments about my data
> other calculations returned as separate text comments on a line
>          X1         X2          X3          X4          X5          X6
>     .....................................................................
>       X19         X20         X21
>
>
>  100.0000000 101.000000 102.0000000 103.0000000 104.0000000 105.0000000
>  ......................118.0000000 119.0000000 120.0000000
>  -0.3380570  -1.400905   1.0396499  -0.5802181  -0.2340614   0.6044928
> ...................................-0.4854702  -0.3677461  -1.2033173
>  -0.9002824   1.544242  -0.8668653   0.3066256   0.2490254  -1.6429223
> .....................................   0.0861146   0.4276929  -0.3408604
>
> How doI change setting for print() or use another function to keep each row
> of the data frame as a single line ( of greater length up to approx 300
> characters) instead of wrapping the data frame into multiple lines of text?
>
> The problem : I end up with the data frame split into several sections one
> under another thus
>
> "datafile.txt"
>
> comments about my data
> other calculations returned as separate text comments on a line
>          X1         X2          X3          X4          X5          X6
>  100.0000000 101.000000 102.0000000 103.0000000 104.0000000 105.0000000
>  -0.3380570  -1.400905   1.0396499  -0.5802181  -0.2340614   0.6044928
>  -0.9002824   1.544242  -0.8668653   0.3066256   0.2490254  -1.6429223
>          X7           X8          X9         X10         X11         X12
>  106.0000000 107.00000000 108.0000000 109.0000000 110.0000000 111.0000000
>   0.3152427   0.15093494  -0.3316172  -0.3603724  -2.0516402  -0.4556241
>  -0.6502265  -0.08842649  -0.3775335  -0.4942572  -0.0976565  -0.7716651
>         X13         X14         X15         X16          X17        X18
>  112.0000000 113.0000000 114.0000000 115.0000000 116.00000000 117.000000
>   0.8829135   0.8851043  -0.7687383  -0.9573476  -0.03041968   1.425754
>   0.2666777   0.6405255   0.2342905  -0.7705545  -1.18028004   1.303601
>         X19         X20         X21
>  118.0000000 119.0000000 120.0000000
>  -0.4854702  -0.3677461  -1.2033173
>   0.0861146   0.4276929  -0.3408604
>
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>



-- 
Jim Holtman
Cincinnati, OH
+1 513 646 9390

What is the problem that you are trying to solve?