Sort (order) data frame rows by multiple columns
I want to sort a data frame by multiple columns. For example, with the data frame below I would like to sort by … Read more
r-faq
How to join (merge) data frames (inner, outer, left, right)
Given two data frames: df1 = data.frame(CustomerId = c(1:6), Product = c(rep(“Toaster”, 3), rep(“Radio”, 3))) df2 = data.frame(CustomerId = c(2, 4, 6), State … Read more
How to make a great R reproducible example
This question’s answers are a community effort. Edit existing answers to improve this post. It is not currently accepting new answers or interactions. … Read more