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2006 Sep 08
2
subsetting a data set
...a set called GQ1, which has 20 variables one of which is a factor called Status at thre levels "Expert", "Ecol" and "Stake" I have managed to evaluate some of the data split by status using commands like: summary (Max[Status=="Ecol"]) BUT how do I produce asummary for Ecol and Expert combined, the only example I can find suggsts I could use summary (Max[Status=="Ecol"& Status=="Expert"]) but that doesn't work. Additionally on the same vein, if I cannot work out how to create a new data set that would contain all the data for all...