Hi, The colClasses seem to be supressing 'NA' vlaues. How do I fix this?
R script and first 5 lines of output is below. File "test2.dat" has blanks that are read as "NA" when I do not use 'colClasses', but as blanks when I use 'colClasses'. temp.df <- read.fwf("test2.dat", width=c(10,1,1,1,1,2,2,3,3,1), col.names=c("psu","losewt","maintain","fewcal","phyact","age","income","weight", "wtdesire","gender"), colClasses=c("factor","factor","factor","factor","factor","numeric","factor", "numeric","numeric","factor"), nrows=270000, comment.char="") temp.df psu losewt maintain fewcal phyact age income weight wtdesire gender 1 2003009323 2 2 52 05 220 220 1 2 2003005181 2 1 2 2 58 08 165 145 2 3 2003015942 2 1 4 1 76 05 142 130 2 4 2003011406 2 1 3 1 43 03 110 110 2 5 2003006786 1 4 1 49 06 178 145 2 ? why am I not getting missing values when I use 'colClasses'? ______________________________________________ R-help@stat.math.ethz.ch 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.