Update rows of data frame in R

Question

Suppose I start with a data frame:

 ID Measurement1 Measurement2
  1           45          104
  2           34           87
  3           23           99
           


        

Answer 1

dplyr 1.0.0 introduced a family of SQL-inspired functions for modifying rows. In this case you can now use rows_update():

library(dplyr)

df1 %>%
  rows_update(df2, by = "ID")

  ID Measurement1 Measurement2
1  1           45          104
2  2           10           11
3  3           23           99
4  4           21           22