Posts by Ceconello • 21 points

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  Q: Select first with conditional

  I am starting in R, and I have a data frame similar to this one below: x <- data.frame(cod_produto = c(1,1,1,2,2,2), valordia = c(0,0,150.23,110.98,18.65,0), data =…

  r dplyr

  asked 5 years, 1 month ago Ceconello 21