Posts by William • 31 points

• 3

  votes

  1

  answer

  3317

  views

  Q: How to turn rows into columns, when the number of rows is variable in R

  I have a data frame that way: And I need him to stay that way: The variable that defines the column can be calculated according to the image below The sequence starts with each id change, in excel…

  r

  asked 8 years, 8 months ago William 31