| Date: | Sat, 6 Sep 1997 00:05:35 GMT |
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| Reply-To: | Vincent Girard <vgirard@AGR.GOUV.QC.CA> |
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| Sender: | "SAS(r) Discussion" <SAS-L@UGA.CC.UGA.EDU> |
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| From: | Vincent Girard <vgirard@AGR.GOUV.QC.CA> |
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| Organization: | CRED - MAPAQ |
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| Subject: | derivative in Proc IML |
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Hello SAS-ler,
any good idea to obtain more elegantly DMAT?
proc iml;
MAT={23,22,25,34,56};
DMAT=.//MAT[2:nrow(MAT),]-MAT[1:(nrow(MAT)-1),];
MAT DMAT
23 .
22 -1
25 3
34 9
56 22
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