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2008 Sep 03
2
basic dataframe question
...s library(NADA) data(CuZn) names(CuZn) StartCu <- ifelse(CuZn$CuCen == "TRUE", 0, CuZn$Cu) EndCu <- CuZn$Cu CuIEP = data.frame(cbind(Cu = CuZn$Cu, CuCen = CuZn$CuCen, StartCu, EndCu)) class(CuZn$CuCen) #returns "logical" class(CuIEP$CuCen) #returns "numeric" CuIEP2 = data.frame(cbind(Cu = CuZn$Cu, CuCen = as.logical(CuZn$CuCen), StartCu, EndCu)) class(CuIEP2$CuCen) #returns "numeric" CuIEP3 = data.frame(cbind(Cu = CuZn$Cu, CuCen = I(CuZn$CuCen), StartCu, EndCu)) class(CuIEP3$CuCen) #returns "numeric" I think that I might be missing somet...