[R] recode problem - unexplained values

[Richard M. Heiberger]

I can propose a strategy.

This example shows that there are different types of blanks when you
look at character data.

    as.character(c("", " ", "  ", "   "))

Your test for "" found only one of them.

Look at the data as read.csv produces it.  That will probably give you
some clues.

mydata <- read.csv("filename")

mydata

as.character(mydata)




Rich