Combining data.frames
by = c("date", "geo_hash" )
On March 19, 2022 6:31:19 PM PDT, Jeff Reichman <reichmanj at sbcglobal.net> wrote:
Yes I'm reading that presently The closest I've gotten has been df3 <- merge(df1, df2, all = TRUE) -----Original Message----- From: Tom Woolman <twoolman at ontargettek.com> Sent: Saturday, March 19, 2022 8:27 PM To: reichmanj at sbcglobal.net Cc: r-help at r-project.org Subject: Re: [R] Combining data.frames You can also do "SQL-like" joins in the tidyverse with dplyr. On 2022-03-19 21:23, Jeff Reichman wrote:
Evening Tom Yest I've been playing with the merge function. But haven't been able to achieve what I need. Could maybe the way to to and it might be my syntax -----Original Message----- From: Tom Woolman <twoolman at ontargettek.com> Sent: Saturday, March 19, 2022 8:20 PM To: reichmanj at sbcglobal.net Cc: r-help at r-project.org Subject: Re: [R] Combining data.frames Have you looked at the merge function in base R? https://www.rdocumentation.org/packages/base/versions/3.6.2/topics/mer ge 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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______________________________________________ R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Sent from my phone. Please excuse my brevity.