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2009 Jun 21
1
Warning messages when using rbind
...ple rbind approach (simple enough for me to understand) to combine data files within R. It seems to work fine, but then generates warning messages for reasons that I can't begin to understand. The text below shows the issue. testread12=read.table("C:/Files/Test100.txt", head = T) testread11=read.table("C:/Files/Test101.txt", head = T) testbind1=rbind(testread12,testread11) testbind2=rbind(testread11,testread12) The testrbind1 line generates the following message: "Warning message: In `[<-.factor`(`*tmp*`, ri, value = c(0.00557998, -0.058016069, : invalid factor...