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2003 Oct 30
0
Variance of a non-linear combination of the coefficient e stiamtes
...tatistics : original bias std. error t1* 1.391884 0.2708119 16.32276 > bob -----Original Message----- From: umeno [mailto:umeno@students.uiuc.edu] Sent: Thursday, October 30, 2003 1:19 PM To: R-Help <r-help Subject: [R] Variance of a non-linear combination of the coefficient estiamtes Hi, I would like to know if anyone knows how to compute a variance of the non-linear combination of the coefficient estimates. Say, I get a model of y~c+ax+bz (1) where x and z are the independent variables, c is the constant estimate, and a and b are the coefficient estimates. Then, I wan...