[R] placing objects with format statements into text file

[Patrick McKnight]

Martin,

Thanks for your help.  It worked flawlessly!  The lapply(d1,format) was
the part that I was missing.  Thanks again.

Cheers,

Patrick


On Thu, 18 Apr 2002, Martin Maechler wrote:

> >>>>> "Patrick" == Patrick McKnight <pem at theriver.com> writes:
> 
>     Patrick> Greetings, Is there a way to explicitly state the
>     Patrick> format statement for each object in a write
>     Patrick> statement?  For example, I have data frame with
>     Patrick> four variables (SSN that is 11 characters, and
>     Patrick> three other variables with values ranging between 0
>     Patrick> and 10).  I would like to have a text file written
>     Patrick> that preserves a specific formatting.
>     Patrick> Specifically, I would like the following result:
> 
>     Patrick> 129-02-1102 1 3 4 5
>     Patrick> 123-45-345610 9 810
> 
>     Patrick> etc.
> 
>     Patrick> As you can see, the SSN takes up only 11 columns
>     Patrick> and the other four variables are formated with no
>     Patrick> seperator but are "put" there with the format
>     Patrick> statement of f2.0.  So, is there a way to
>     Patrick> accomplish this in R?  If so, I would be extremely
>     Patrick> greatful for direction.
> 
> Here is an example (providing these explicitly in such questions
> 		   makes the question often easier to understand)
> 
> d1 <- data.frame(ssn = c("123-345-789","987-654-3"), id = 1:2, age=c(20,60))
> > d1
>           ssn id age
> 1 123-345-789  1  20
> 2   987-654-3  2  60
> 
> Now the idea is to use
> -  write.table with  sep=""
> -  format each column - coercing to character (of same width) :
> 
> > write.table(lapply(d1,format), quote=FALSE,row.names=FALSE,col.names=FALSE,sep="")
> 
> 123-345-789120
> 987-654-3  260
> 
> ----
> 

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