Have you looked at the merge function in base R?
https://www.rdocumentation.org/packages/base/versions/3.6.2/topics/merge
On 2022-03-19 21:15, Jeff Reichman wrote:
R-Help Community
I'm trying to combine two data.frames which each containing 10 columns
of
which they each share two common fields. Here are two small test
datasets.
df1 <- data.frame(date =
c("2021-1-1","2021-1-1","2021-1-1","2021-1-1","2021-1-1",
"2021-1-2","2021-1-2","2021-1-3","2021-1-3","2021-1-3"),
geo_hash =
c("abc123","abc123","abc456","abc789","abc246","abc123",
"asd123","abc789","abc890","abc123"),
ad_id =
c("a12345","b12345","a12345","a12345","c12345",
"b12345","b12345","a12345","b12345","a12345"))
df2 <- data.frame(date =
c("2021-1-1","2021-1-1","2021-1-2","2021-1-3","2021-1-3"),
geo_hash =
c("abc123","abc456","abc123","abc789","abc890"),
event =
c("shoting","ied","protest","riot","protest"))
I'm trying to combine them such that I get a combined data.frames such
as
date geo_hash ad_id event
1/1/2021 abc123 a12345 shoting
1/1/2021 abc123 b12345
1/1/2021 abc456 a12345 ied
1/1/2021 abc789 a12345
1/1/2021 abc246 c12345
Jeff
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______________________________________________
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
