search for: fishdatamean

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2007 Sep 07
1
aggregate factor
...1 1 1 1 1 1 1 1 1 1 ... $ TL : int 132 120 125 115 130 120 115 110 117 116 ... $ W : int 10 10 10 10 10 10 10 10 10 20 ... $ Sex : Factor w/ 3 levels "F","I","M": 1 1 2 2 2 1 1 1 2 2 ... $ WT : num 0.23 0.23 0.23 0.23 0.23 0.23 0.23 0.23 0.23 0.23 ... > fishdatameans=aggregate(fishdata$TL, list(Lake = fishdata$Lake, Age=fishdata$Age), mean) # Now Age is a Factor but 10 is in the wrong position. > fishdatameans$Age [1] 0 1 1 1 2 2 2 3 3 3 4 4 4 5 5 6 6 6 7 8 9 10 Levels: 0 1 10 2 3 4 5 6 7 8 9 > as.numeric(fishdatameans$Age) [...