Displaying 1 result from an estimated 1 matches for "tp4237650p4237650".
2011 Dec 27
1
Summing Data in R
...g individual stats by
each HD I want to sum the stats that correspond to say year 1999 and HD 101.
Does anyone know an easy/quick way to do this? I'm a new user of R and Any
help would be much appreciated.
Steve
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