Questions tagged as 'r'

Please, I need a function in R to validate a CPF, ie check if a number passed as a parameter is a valid CPF.     

I have a large CSV with large stock dates and their closing prices, impossible to use Excel. The action name is in the same column as the date and only appears at the beginning of the series, as shown below: I have limited knowledg...

rm(list=ls()) options(warn=-1) library("RCurl") library("XML") baseurl <- "http://www.gmbahia.ufba.br/index.php/gmbahia/issue/archive?issuesPage=XX#issues" dados <- data.frame() for (i in 1:29){ print(i) url <- gsub("XX", i...