ron-r
5/5/2014 - 7:25 AM

convert some of the variables from factor into numeric

convert some of the variables from factor into numeric

loc_d[, c(5:132)] <- sapply(loc_d[, c(5:132)], as.numeric)

http://stackoverflow.com/questions/2288485/how-to-convert-a-data-frame-column-to-numeric-type/2293313#2293313