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Random selection from a subsample
2010 Dec 19
1
Random selection from a subsample
Dear Mailing List I have a data set (data4) consisting of a number of factors and a response variable. I wish to randomly sample from a combination of two of those factors (GIS_station and Distance_code2) and return a new dataframe containing the original data structure (i.e. all the columns) but only containing the randomly selected rows. The number of rows in each combination of GIS_station and Distance_code2 vary (widely) and some combinations are absent. This is getti...