Most voted "plyr" questions
plyr is an R package with tools to solve a variety of problems using the divide strategy, apply a function and recombine the data (split-apply-combine).
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22
votes5
answers12797
viewsHow to consolidate (aggregate or group) the values in a database?
Suppose I have the following database vendas<-c(100,140,200,300,20,1000,200,3000) vendedor<-c("A","B","A","B","C","C","D","A")…
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4
votes2
answers175
viewsApply function in data groups
I need to separate the data into groups and perform the calculations in two or three groups/dimensions. I found the tapply function, it solves the problem. With it I get what I need by using the…
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1
votes1
answer5247
viewsCalculate mean, standard deviation and coefficient of variation in historical series in R
Good morning, I need to generate the mean, standard deviation and coefficient of variation of the data frame below, from the mat13 to mat16 columns, as below: library(plyr) co_entidade<-c(23, 40,…
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1
votes0
answers32
viewsIs there any functional difference between bind_rows (dplyr) and rbind.Fill (plyr) in R?
I would like to know if using one function instead of another there would be some differential in relation to the final dataframe to be produced. There were situations I tried to accomplish…