Displaying 1 result from an estimated 1 matches for "tp3297313p3301627".
2011 Feb 09
3
Need help merging two dataframes
Hi R users,
I am trying to extract some attributes (age, sex, area) from dataframe "AB"
that has 101,269 observations of 28 variables to dataframe "t2" that has 47
observations of 6 variables. They share a column called "id", which is a
factor with 47 levels. I want to end up with a dataframe that has 47
observations of 9 variables (the original 6 variables of t2,