Jeff This seems to work
df3 <- merge(df1, df2, all = TRUE) When I use either of the by.x, by.y or all.x, all.y arguments I get really weard results. Simply using the code about appears to work thus far. -----Original Message----- From: Jeff Newmiller <jdnew...@dcn.davis.ca.us> Sent: Saturday, March 19, 2022 8:51 PM To: reichm...@sbcglobal.net; Jeff Reichman <reichm...@sbcglobal.net>; 'Tom Woolman' <twool...@ontargettek.com> Cc: r-help@r-project.org Subject: Re: [R] Combining data.frames Then show your code so we can focus on what you haven't yet figured out. Have you read the examples in the merge help page? On March 19, 2022 6:23:02 PM PDT, Jeff Reichman <reichm...@sbcglobal.net> 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 <twool...@ontargettek.com> >Sent: Saturday, March 19, 2022 8:20 PM >To: reichm...@sbcglobal.net >Cc: r-help@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/merg >e > > >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 >> >> ______________________________________________ >> R-help@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. > >______________________________________________ >R-help@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. ______________________________________________ R-help@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.
