Dear all, I have a dataset that looks like
id var1 var2 var4 var7 var8 1 0.0 0.1 0.3 0.9 0.0 2 0.4 0.6 0.0 0.0 0.2 3 0.0 0.0 0.0 0.8 0.7 Some columns are missed, for example, here the fourth (var3), sixth(var5) and seventh (var6) columns. I want to first determine which columns are missed in a huge dataset and then add the missed columns with the values of zeros that looks like id var1 var2 var3 var4 var5 var6 var7 var8 1 0.0 0.1 0.0 0.3 0.0 0.0 0.9 0.0 2 0.4 0.6 0.0 0.0 0.0 0.0 0.0 0.2 3 0.0 0.0 0.0 0.0 0.0 0.0 0.8 0.7 Can anybody please help how to get this done? Thanks a lot in advance Lisa -- View this message in context: http://r.789695.n4.nabble.com/Add-columns-of-dataset-tp3071722p3071722.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.
