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Right now I have the following code for mean and sd seperated as 

aggregate(renters$rentm25,
          list(Province = renters$pvreg25, Mean = renters$pvreg25), mean)

aggregate(renters$rentm25,
          list(Province = renters$pvreg25, Mean = renters$pvreg25), sd)

Data

enter image description here

I also want to know how I can change the value of x to name it as mean and sd?

steveb
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honix
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1 Answers1

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The doBy package doesn't get a lot of attention, but it does this job nicely:

library(doBy)
summaryBy(rentm25 ~ pvreg25, FUN=c(mean, sd), data=renters)

But since you did not provide example data, it is not clear that this is what you are looking for.

Remko Duursma
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