[R] sink to file

[Uwe Ligges]

Urs Wagner wrote:

> Hello
> 
> I would like to use the source(command)  and write the output into a file.
> I am using
> 
> outputfile=file("output.txt", open="wt")
> sink(outputfile, type="output")
> source("input.R", echo=TRUE)
> 
> Unfortunately the result has prompted commands. How can I avoid the 
> prompted commands data(iris), ...?

By *not* specifying echo=TRUE in source, but print()-ing the summary below.

Uwe Ligges


> Thanks
> 
>  > data(iris)
>  > dataset = iris
>  > options(width = 50)
>  > summary(dataset)
>  Sepal.Length    Sepal.Width     Petal.Length Min.   :4.300   Min.   
> :2.000   Min.   :1.000 1st Qu.:5.100   1st Qu.:2.800   1st Qu.:1.600 
> Median :5.800   Median :3.000   Median :4.350 Mean   :5.843   Mean   
> :3.057   Mean   :3.758 3rd Qu.:6.400   3rd Qu.:3.300   3rd Qu.:5.100 
> Max.   :7.900   Max.   :4.400   Max.   :6.900  Petal.Width          
> Species Min.   :0.100   setosa    :50 1st Qu.:0.300   versicolor:50 
> Median :1.300   virginica :50 Mean   :1.199                 3rd 
> Qu.:1.800                 Max.   :2.500
> 
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