Hello, I have a very large content analysis project, which I've just begun to collect training data on. I have three coders, who are entering data on up to 95 measurements. Traditionally, I've used Excel to check coder agreement (e.g., percentage agreement), by lining up each coder's measurements side-by-side, creating a new column with the results using if statements. That is, if (a=b, 1, 0). With this many variables, I am clearly interested in something that I don't have to create manually every time I check percentage agreement for coders.
The data are set up like this: ID CODER V1 V2 V3 V4 ... V95 ID1 C1 y int doc y ID2 C1 y ext doc y ID1 C2 n int doc y ID2 C2 n int doc y ID1 C3 n int doc y ID2 C3 n int doc y I would like to write a script to do the following: For each variable compare each pair of coders using if statements (e.g., if C1.V1.==C1.V2, 1, 0) ID C1.V1 C2.V1 C3.V1 ID1 y y y ID2 y y y For each coding pair, enter the resulting 1s and 0s into a new column. The new column name would reflect the results of the comparison, such as C1.C2.V1 I'd ideally like to create this so that it can handle any number of variables and any number of coders. I appreciate any thoughts, help, and pointers on this. Thanks in advance. Best, Ryan Fuller Doctoral Candidate, Communication Graduate Student Researcher, Carsey-Wolf Center http://carseywolf.ucsb.edu University of California, Santa Barbara -- View this message in context: http://r.789695.n4.nabble.com/multiple-column-comparison-tp4332604p4332604.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.
