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2012 Aug 29
5
tapply confusion
Hello I have a huge data frame with three columns 'Roof' 'Month' and 'Temp' i want to run analyses on the numerical Temp data by the factors Roof and Month, separately and together. For using more than one factor i understand i should use aggregate, but i am struggling with the tapply for single factor analysis. > tapply(Temp, INDEX = Roof, FUN = median) This works