Displaying 2 results from an estimated 2 matches for "nameofdataset".
2010 Oct 05
2
Sampling from data set
Dear all.
I have data with 2 variable x,y size 10000.
I want to sampling from this data with size 100.
How I can do it.
THANK.
--
Jumlong Vongprasert
Institute of Research and Development
Ubon Ratchathani Rajabhat University
Ubon Ratchathani
THAILAND
34000
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2003 Aug 26
3
Subsetting a dataframe
Hi R-people
I have a question concerning subsetting. I have a dataframe which contains among other variables the variable "subject". For each subject number there are several rows, e.g.:
subject treatment concentration day
19 a 15,4 1
19 a 18,3 2
19 a 2,3 3
etc.
Im trying to subset the dataframe to get for