[R-sig-Geo] Digit positions in writing files

[Robert J. Hijmans]

Have a look at sprintf

Robert

On Wed, Dec 1, 2010 at 2:41 AM, 马可 <wul1984 at gmail.com> wrote:
> Hi, list:
>
> I am processing a kind of data which has very strict format on digit
> position, ie., for the first column, the last digit should be in column 5,
> the second in column 10, and 16, 24, 32 for the 3rd, 4th, and 5th,
> respectively. Here is the segment:
>
>        29  -999  1051   69.58   23.53
>        30  -999  1052   70.67   23.67
>        31  -999  1053   70.68   23.68
>        32  -999  1055   71.10   24.00
>         .......
>   13642 -999 97890   -7.83  129.67
>   13643   30 97900   -7.98  131.30
>   13644  100 97980   -8.47  140.38
>   13645   66 98132   20.80  121.85
>   13646 -999 98133   19.27  121.47
>
> My aim is to replace the coordinates of certain rows using new coordinates,
> and put the whole file back into the same filee, but it seems that I can
> only get constant spaces between each column if I use write.table, with
> sep=' '. So, my question is, is there any way that I could get the desired
> format? By the way, I have more than 10,000 rows in each file (day), and 365
> days for each year, I think for me, R is the only way to do this.
>
> Thanks in advance~
>
> Best regards~
>
> Marco
>
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>
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