I have a dataframe with 2 column lists (2 variabels):
column 1 column 2
1 324
2 NA
3 NA
4 1
45 NA
325 1
4556 NA
which i like to merge with another dataframe that i have that has 8 variables:
column 1 column 2 column 3 column 4 column 5 column 6 column 7 column8
1 324 1 324 etc. etc.
2 NA 1 324
2 NA 1 324
2 NA 1 324
2 NA 1 324
How can i do so?