R help - May 2007 - creating txt file from data.frame

R-users
I need to create a txt file as input for another program using data.frame 
values

     Variable_name               Start End
[1,] "aaaaaaaaaaaaa"           "1"   "1"
[2,] "bbbbbbbbbbb"           "2"   "2"
[3,] "ccccccccccccc"           "3"   "6"
[4,] "ddddddddddd"          "7"   "10"
[5,] "eeeeeeeeeee"         "11"  "16"


the text file should look like below,
if the start and the end is the same, only put the start one in the txt 
file.

aaaaaaaaaaaaa 1
bbbbbbbbbbb 2
ccccccccccccc 3-6
ddddddddddd 7-10
eeeeeeeeeee 11-16

Any help will be appreciated.

Taka,

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apply(dfr,1,FUN=function(x){
                   cat(c(x[1],
                           
ifelse(x[2]==x[3],x[2],paste(x[2],x[3],sep="-")),"\n"),
                        file="filename.txt")
                 })
This code assumes the data frame with at least 3 columns, errors will occur
if there will be less than 3 columns.


Taka Matzmoto wrote:
> 
> R-users
> I need to create a txt file as input for another program using data.frame 
> values
> 
>      Variable_name               Start End
> [1,] "aaaaaaaaaaaaa"           "1"   "1"
> [2,] "bbbbbbbbbbb"           "2"   "2"
> [3,] "ccccccccccccc"           "3"   "6"
> [4,] "ddddddddddd"          "7"   "10"
> [5,] "eeeeeeeeeee"         "11"  "16"
> 
> 
> the text file should look like below,
> if the start and the end is the same, only put the start one in the txt 
> file.
> 
> aaaaaaaaaaaaa 1
> bbbbbbbbbbb 2
> ccccccccccccc 3-6
> ddddddddddd 7-10
> eeeeeeeeeee 11-16
> 
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