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2011 Oct 04
3
How to subset() from data frame using specific rows
...a","Cl",..: 1 1 1 1 1 1 1 1 1 1 ... $ quant : num 0.06 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 ... I've looked in the R Cookbook and Dalgaard's intro book without finding a way to use wildcards (e.g., like "BC-*") or explicitly witing each site ID when subdsetting a data frame.. I need to create subsets (as data frames) based on sites, but including all sites on each stream. For example, using the initial site factor shown above, I want a subset containing all data for sites "BC-0.5", "BC-1". "BC-2", "BC-3", &q...