Anyone can help with this question
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-bounces at 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-bounces at 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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