assuming your data takes the form of
location latitude longitude
string num num
string2 num num
try:
sub <- dat[sample.int(length(dat$location), 1000),]
--------------------------------------
Jonathan P. Daily
Technician - USGS Leetown Science Center
11649 Leetown Road
Kearneysville WV, 25430
(304) 724-4480
"Is the room still a room when its empty? Does the room,
the thing itself have purpose? Or do we, what's the word... imbue it."
- Jubal Early, Firefly
r-help-boun...@r-project.org wrote on 11/16/2010 12:13:57 PM:
> [image removed]
>
> [R] Anyone can help with this question
>
> Mariana
>
> to:
>
> r-help
>
> 11/16/2010 02:22 PM
>
> Sent by:
>
> r-help-boun...@r-project.org
>
>
> Hi there:
> I am a total beginner in R, and I have a simple question:
> I have a table with thousands of lines that represent locations, and two
> columns: latitude and longitude. I need to randomly sample 1000 lines.
How
> do I do it? I know the command "sample", but it samples elements
> independently, not lines.
> If there is a better place for me to ask that type of question, please
let
> me know.
> Thanks a lot,
> Mariana (from Brazil)
>
> --
> View this message in context: http://r.789695.n4.nabble.com/Anyone-
> can-help-with-this-question-tp3045265p3045265.html
> Sent from the R help mailing list archive at Nabble.com.
>
> ______________________________________________
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