Dear Alessando, I don´t know if I understood well your question, but my be
you are not "losting" the precision. Try change the options(digits=10).
If you want to output with "," as sepatator, try something like
write.table(testground, "my_output.txt", sep=",", append=F, quote=F,
row.names=F)

but if you want TAB as sepatador try this:
write.table(testground, "my_output.txt", sep="\t", append=F, quote=F,
row.names=F)

Best wishes

miltinho astronauta
brazil


On 8/8/08, Alessandro <alessandro.montaghi@unifi.it> wrote:
>
> Hi All,
>
>
>
> I have 2 questions:
>
> 1.       Import: when I import my txt file (X,Y and Z) in R with
> "testground
> <- read.table(file="c:/work_LIDAR_USA/R_kriging/ground26841492694149.txt",
> header=T)", I lost the 4 number after the point (".").  does It possible
> add
> in the code the possibility to read the 4 numbers after the .
>
>
>
> 2.       Does It possible to write a X, Y,  Z *txt file without the ID in R
> and sep"," for the rows?
>
>
>
> Example:
>
> Original data:
>
> X Y Z
>
> 26800.4700 4149983.9400 1543.3900
>
> ....... ......... ......
>
>
>
> I wish to create a txt file (with "," sep):
>
> X, Y, Z
>
> 26800.4700, 4149983.9400, 1543.3900
>
> ......., ........., ......
>
>
>
> Thanks (It's Friday night, sorry I am tired)
>
>
>
> Ale
>
>
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>
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