pmax() should work in this instance, as in any case you want the larger value.
Andrew -- Andrew Robinson Director, CEBRA, School of BioSciences Reader & Associate Professor in Applied Statistics Tel: (+61) 0403 138 955 School of Mathematics and Statistics Fax: (+61) 03 8344 4599 University of Melbourne, VIC 3010 Australia Email: a...@unimelb.edu.au Website: http://cebra.unimelb.edu.au/ ________________________________ From: R-help <r-help-boun...@r-project.org> on behalf of Ana Marija <sokovic.anamar...@gmail.com> Sent: Thursday, August 8, 2019 4:37 am To: r-help Subject: [R] Help with if else statement Hello, I have a data frame which looks like this: > head(pt) eidQ phenoQ phenoH 1 1000017 -9 -9 2 1000025 -9 -9 3 1000038 -9 1 4 1000042 -9 -9 5 1000056 -9 -9 6 1000074 -9 -9 7 1000038 -9 1 8 1000127 2 1 9 1000690 2 -9 10 1000711 2 -9 11 1001431 2 1 12 1001710 -9 1 I would like to create the 3rd column called "pheno" which would have these values: -9,-9,1,-9,-9,-9,1,2,2,2,2,1 so in other words: -if -9 appears in both phenoQ and phenoH I will have -9 in pheno -if 2 appears in any of phenoQ or phenoH I will have 2 in pheno -if I have -9 and 1 or 1 and -9 in those columns I will have 1 in pheno -if I have -9 and 2 or 2 and -9 in those columns I will have 2 in pheno Can you please tell me how my if else statement would look like or any other way how to do that in R if my data frame name is "pt" Thanks Ana Ana ______________________________________________ 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. [[alternative HTML version deleted]] ______________________________________________ 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.
