I apologize if you have already seen my question. I am new to the mailing list and I did not get any responses the first time I posted my question. However, I am not sure my post went through. Here is my situation: I have a spreadsheet with columns of fish species (text) and length (numbers). In the fish species column I have 5 different fish. I want R to calculate the mean length and standard error for each species. I tried using the stats functin with stats(fishdata, by=species) R told me it could not find function stats. Is there a library I need to install to get stats to work? Mike [[alternative HTML version deleted]]
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