[R] Count cell Count by her frequency
Hello togehter, i have a data.frame, with value like this: A B 1 10-1 aaa 2 10-1 bbb 3 10-1 abc 4 10-2 vvv 5 10-3 ggg I want now a evaluation, which character is how often in my data.frame. Like this one: A B 1 10-1 3 2 10-2 1 3 10-3 1 How can i do this? Thank you. Mat -- View this message in context: http://r.789695.n4.nabble.com/Count-cell-Count-by-her-frequency-tp4652650.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list 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.
Re: [R] Count cell Count by her frequency
Hello, Try the following. dat - read.table(text = A B 1 10-1 aaa 2 10-1 bbb 3 10-1 abc 4 10-2 vvv 5 10-3 ggg , header = TRUE) tbl - table(dat$A) data.frame(tbl) Hope this helps, Rui Barradas Em 10-12-2012 08:50, Mat escreveu: Hello togehter, i have a data.frame, with value like this: A B 1 10-1 aaa 2 10-1 bbb 3 10-1 abc 4 10-2 vvv 5 10-3 ggg I want now a evaluation, which character is how often in my data.frame. Like this one: A B 1 10-1 3 2 10-2 1 3 10-3 1 How can i do this? Thank you. Mat -- View this message in context: http://r.789695.n4.nabble.com/Count-cell-Count-by-her-frequency-tp4652650.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Count cell Count by her frequency
You request is not completely clear. I am assuming you want to count the number of different characters in B for each category in A: A - c(10-1, 10-1, 10-1, 10-2, 10-3) B - c(aaa, bbb, abc, vvv, ggg) dta - data.frame(A, B) dta A B 1 10-1 aaa 2 10-1 bbb 3 10-1 abc 4 10-2 vvv 5 10-3 ggg a1 - tapply(dta$B, dta$A, paste0, collapse=) a2 - strsplit(a1, ) a3 - lapply(a2, unique) a4 - sapply(a3, length) dtanew - data.frame(A=names(a4), B=a4, row.names=1:length(a4)) dtanew A B 1 10-1 3 2 10-2 1 3 10-3 1 -- David L Carlson Associate Professor of Anthropology Texas AM University College Station, TX 77843-4352 -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-bounces@r- project.org] On Behalf Of Mat Sent: Monday, December 10, 2012 2:50 AM To: r-help@r-project.org Subject: [R] Count cell Count by her frequency Hello togehter, i have a data.frame, with value like this: A B 1 10-1 aaa 2 10-1 bbb 3 10-1 abc 4 10-2 vvv 5 10-3 ggg I want now a evaluation, which character is how often in my data.frame. Like this one: A B 1 10-1 3 2 10-2 1 3 10-3 1 How can i do this? Thank you. Mat -- View this message in context: http://r.789695.n4.nabble.com/Count-cell- Count-by-her-frequency-tp4652650.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list 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 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.
Re: [R] Count cell Count by her frequency
Thank you all, a few ideas worked perfectly for me. I take with(dat1,aggregate(B,by=list(A=A),length)) for my task. Have a nice day. Mat -- View this message in context: http://r.789695.n4.nabble.com/Count-cell-Count-by-her-frequency-tp4652650p4652678.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list 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.
Re: [R] Count cell Count by her frequency
And another way: library(plyr) ddply(dta,A,summarise,B=length(B)) Felipe D. Carrillo Supervisory Fishery Biologist Department of the Interior US Fish Wildlife Service California, USA http://www.fws.gov/redbluff/rbdd_jsmp.aspx From: David L Carlson dcarl...@tamu.edu To: 'Mat' matthias.we...@fnt.de; r-help@r-project.org Sent: Monday, December 10, 2012 7:43 AM Subject: Re: [R] Count cell Count by her frequency You request is not completely clear. I am assuming you want to count the number of different characters in B for each category in A: A - c(10-1, 10-1, 10-1, 10-2, 10-3) B - c(aaa, bbb, abc, vvv, ggg) dta - data.frame(A, B) dta A B 1 10-1 aaa 2 10-1 bbb 3 10-1 abc 4 10-2 vvv 5 10-3 ggg a1 - tapply(dta$B, dta$A, paste0, collapse=) a2 - strsplit(a1, ) a3 - lapply(a2, unique) a4 - sapply(a3, length) dtanew - data.frame(A=names(a4), B=a4, row.names=1:length(a4)) dtanew A B 1 10-1 3 2 10-2 1 3 10-3 1 -- David L Carlson Associate Professor of Anthropology Texas AM University College Station, TX 77843-4352 -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-bounces@r- project.org] On Behalf Of Mat Sent: Monday, December 10, 2012 2:50 AM To: r-help@r-project.org Subject: [R] Count cell Count by her frequency Hello togehter, i have a data.frame, with value like this: A B 1 10-1 aaa 2 10-1 bbb 3 10-1 abc 4 10-2 vvv 5 10-3 ggg I want now a evaluation, which character is how often in my data.frame. Like this one: A B 1 10-1 3 2 10-2 1 3 10-3 1 How can i do this? Thank you. Mat -- View this message in context: http://r.789695.n4.nabble.com/Count-cell- Count-by-her-frequency-tp4652650.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list 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 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. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list 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.
Re: [R] Count cell Count by her frequency
And a third way to interpret the question! Rui count rows per category in - A = 3 rows, 1 row, 1 row David count different letters used in B per category in A 3 (a,b,c), 1 (v), 1 (g) Felipe - count different strings in B per category - 3 (aaa, bbb, abc), 1 (vvv), 1 (ggg) Interesting that the sample data provide the same answer to all three questions, but Felipe's interpretation makes more sense than mine. -- David L Carlson Associate Professor of Anthropology Texas AM University College Station, TX 77843-4352 From: Felipe Carrillo [mailto:mazatlanmex...@yahoo.com] Sent: Monday, December 10, 2012 10:05 AM To: dcarl...@tamu.edu; 'Mat'; r-help@r-project.org Subject: Re: [R] Count cell Count by her frequency And another way: library(plyr) ddply(dta,A,summarise,B=length(B)) Felipe D. Carrillo Supervisory Fishery Biologist Department of the Interior US Fish Wildlife Service California, USA http://www.fws.gov/redbluff/rbdd_jsmp.aspx From: David L Carlson dcarl...@tamu.edu To: 'Mat' matthias.we...@fnt.de; r-help@r-project.org Sent: Monday, December 10, 2012 7:43 AM Subject: Re: [R] Count cell Count by her frequency You request is not completely clear. I am assuming you want to count the number of different characters in B for each category in A: A - c(10-1, 10-1, 10-1, 10-2, 10-3) B - c(aaa, bbb, abc, vvv, ggg) dta - data.frame(A, B) dta A B 1 10-1 aaa 2 10-1 bbb 3 10-1 abc 4 10-2 vvv 5 10-3 ggg a1 - tapply(dta$B, dta$A, paste0, collapse=) a2 - strsplit(a1, ) a3 - lapply(a2, unique) a4 - sapply(a3, length) dtanew - data.frame(A=names(a4), B=a4, row.names=1:length(a4)) dtanew A B 1 10-1 3 2 10-2 1 3 10-3 1 -- David L Carlson Associate Professor of Anthropology Texas AM University College Station, TX 77843-4352 -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-bounces@r- project.org] On Behalf Of Mat Sent: Monday, December 10, 2012 2:50 AM To: r-help@r-project.org Subject: [R] Count cell Count by her frequency Hello togehter, i have a data.frame, with value like this: A B 1 10-1 aaa 2 10-1 bbb 3 10-1 abc 4 10-2 vvv 5 10-3 ggg I want now a evaluation, which character is how often in my data.frame. Like this one: A B 1 10-1 3 2 10-2 1 3 10-3 1 How can i do this? Thank you. Mat -- View this message in context: http://r.789695.n4.nabble.com/Count-cell- Count-by-her-frequency-tp4652650.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list 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 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 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.
