R Tutorial 35: Writing functions

Learn how to write function in R.

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ezambrandt ezambrandt says:

Thanks a lot for the whole tutorial.  But what if I had a data frame corresponding to a sample in which each case or row represents cases of the population, how to weight the cases to tabulate the right results? (In SPSS the command to do that is weight by fexp)

palash trivedi says:

what is prod.x????

Naseem Ali says:

thanks so much. this explained it perfectly.

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