Hello I have a problem like this: > Glass$RI[is.outlier(Glass$RI)] Error: could not find function "is.outlier" Which commend I may add "is.outer" to my application? -- View this message in context: http://www.nabble.com/How-may-I-add-%22is.outer%22-method-tp23006216p23006216.html Sent from the R help mailing list archive at Nabble.com.