Hello, In my code I found something that looks like an anomaly, I found a reproducible example in which I am just trying to compare each row in a data frame against the first row:
a<-data.frame(row=c("B","C","B"),column=c(2,2,10),assay=c("Assay1","Assay1","Assay1"),plate=c(1,1,1),stringsAsFactors=FALSE) apply(a[1:2,],1,function(x) { all(x==a[1,]) }) apply(a[1:3,],1,function(x) { all(x==a[1,]) }) > > 1 2 TRUE FALSE > 1 2 3 FALSE FALSE FALSE > The second result is not right, it should be TRUE FALSE FALSE Am I doing something wrong or is this a bug? With other inputs it seems to work ok Here is my sessionInfo() > sessionInfo() R version 3.2.5 (2016-04-14) Platform: x86_64-redhat-linux-gnu (64-bit) Running under: CentOS release 6.9 (Final) locale: [1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C [3] LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8 [5] LC_MONETARY=en_US.UTF-8 LC_MESSAGES=en_US.UTF-8 [7] LC_PAPER=en_US.UTF-8 LC_NAME=C [9] LC_ADDRESS=C LC_TELEPHONE=C [11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C attached base packages: [1] stats graphics grDevices utils datasets methods base > Thank you, Ramiro Ramiro Barrantes Ph.D. Precision Bioassay, Inc. 431 Pine St., Suite 110 Burlington, VT 05401 802 865 0155 802 861 2365 FAX www.precisionbioassay.com<https://west.exch023.serverdata.net/owa/redir.aspx?SURL=wN3KzpoKXAcetH7sTOTnSyfg-iAXFIinpPUtRcduCFCtkgZrUSDTCGgAdAB0AHAAOgAvAC8AdwB3AHcALgBwAHIAZQBjAGkAcwBpAG8AbgBiAGkAbwBhAHMAcwBhAHkALgBjAG8AbQA.&URL=http%3a%2f%2fwww.precisionbioassay.com> ram...@precisionbioassay.com CONFIDENTIALITY NOTICE: This email, including any attach...{{dropped:9}} ______________________________________________ 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.