Dear R-developers, I came to a somewhat unexpected behaviour of read.csv() which is trivial but worthwhile to note -- my data involves a protein named "1433E" but to save space I drop the quote so it becomes,
Gene,SNP,prot,log10p YWHAE,13:62129097_C_T,1433E,7.35 YWHAE,4:72617557_T_TA,1433E,7.73 Both read.cv() and readr::read_csv() consider prot(ein) name as (possibly confused by scientific notation) numeric 1433 which only alerts me when I tried to combine data, all_data <- data.frame() for (protein in proteins[1:7]) { cat(protein,":\n") f <- paste0(protein,".csv") if(file.exists(f)) { p <- read.csv(f) print(p) if(nrow(p)>0) all_data <- bind_rows(all_data,p) } } proteins[1:7] [1] "1433B" "1433E" "1433F" "1433G" "1433S" "1433T" "1433Z" dplyr::bind_rows() failed to work due to incompatible types nevertheless rbind() went ahead without warnings. Best wishes, Jing Hua ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel