R help - Jul 2003 - (no subject)

Hi 
I got a problem with creating a textfile:
how can I create a textfile, which has a headline like:

#data1
1 2 3 4 
5 6 7 8

the problem is, how to bind text and matrix, so that the
"read.table"-function
will ignore the text and read the numbers.

Thank you for help
Michael 

-- 
2

"sink" may be the simplest but won't give you the control you may
want.

For full control, have you considered "cat" and
"write.table"?  Both
have "append" arguments plus others.

hope this helps.  spencer graves

michael kirschbaum wrote:
> Hi 
> I got a problem with creating a textfile:
> how can I create a textfile, which has a headline like:
> 
> #data1
> 1 2 3 4 
> 5 6 7 8
> 
> the problem is, how to bind text and matrix, so that the
> "read.table"-function
> will ignore the text and read the numbers.
> 
> Thank you for help
> Michael 
>

[read text file :]
> #data1
> 1 2 3 4 
> 5 6 7 8
Is this what you mean ?
> b <- read.table("filewithyourdata", header=F, sep="
")
> b
  V1 V2 V3 V4
1  1  2  3  4
2  5  6  7  8


HTH,

Tobias

Sorry Michael,
I should read more carefully.
You asked to create the file,
not to read it.

Tobias

One way might be to use a connection and `writeLines'.  For example:
>  a <- matrix(1:8, byrow = TRUE, ncol = 4)
>  a
     [,1] [,2] [,3] [,4]
[1,]    1    2    3    4
[2,]    5    6    7    8
>  con <- file("testfile.txt", "w")
>  writeLines("#data", con)
>  write(a, con, ncol = 4)
>  close(con)
>
-roger

michael kirschbaum wrote:
>Hi 
>I got a problem with creating a textfile:
>how can I create a textfile, which has a headline like:
>
>#data1
>1 2 3 4 
>5 6 7 8
>
>the problem is, how to bind text and matrix, so that the
>"read.table"-function
>will ignore the text and read the numbers.
>
>Thank you for help
>Michael 
>
>  
>