Displaying 1 result from an estimated 1 matches for "tp3687506p3687864".
2011 Jul 22
2
matched pairs
Hi all,
I am hoping to keep certain rows of my data set. These are rows whose value
in column X is equal to the value in column X for another row. For example:
1 1
2 1
3 2
4 3
5 4
6 4
>From this I would want the following:
1 1
2 1
5 4
6 4
I am struggling with the for loop. Here is what I have currently:
## where to store values
pairs.list <- data.frame(NA, nrow(data),