Displaying 1 result from an estimated 1 matches for "acme_ltd".
2010 Sep 17
0
Merging data frames on a variety of columns
...datasets,
probably using merge, but I am open to other ideas. I have a large
frame of information about companies.? It's over 30,000 rows and looks
something like...
df1 <-
identifier1???? identifier2 name other_name year
H34 C56 ACME ACME_LTD 2001
H34 NA ACME ACME_LTD 2002
X20 C40 FOO_CO FOO_CO 2004
NA NA BAR_SA BAR_SAB 2004
NA NA BAR_SA BAR_SAB 2005
As you can see, many obse...