Hi, I need your help, so I send letter to you. I have a problem about plsr in pls package. I want to show how classfied or related each ohter samples, so I tried to use plsr and biplot. But, I failed. Because, I had to change data type of my sample. Unfortunately, I didn't know how change data type. I want you to help me about that. please, help me. I show you my sample data , my scripts and error message. sample data > asdf sp mw.1 mw.2 mw.3 1 a 1 2 5 2 a 2 3 6 3 b 3 4 7 4 c 4 5 8 5 c 5 6 9 My script p1=plsr(sp~ .,data=asdf,varidation='CV') error message ???????????? ????????colMeans(Y) : 'x'???? ???????????????????????? ???????????? ????????????????:Warning message: In model.response(mf, "numeric") : using type="numeric" with a factor response will be ignored ???????????? ???????? ???????????? ????????????????... [1][wVpvTe.LSMSRNyWa4ML8cw00] [???????????? Express][2]???????????????????? ???????????????????? ????????????! [3]???????????????? ???????????? [@from=aliel83&rcpt=r%2Dhelp%40r%2Dproject%2Eorg&msgid=%3C20090506134717%2EH M%2EN000000000EbpdC%40aliel83%2Ewwl513%2Ehanmail%2Enet%3E] References Visible links 1. mailto:aliel83 at hanmail.net 2. http://allim.daum.net/servlet/Redirect?sid=footer_090223_ex 3. http://hyphen.daum.net/request/campaign/sub/childrensday2009.do Hidden links: 4. http://daumdirect.daum.net/websales/main/event/20080516_woori_event.jsp?_partner_code.key=9100009