Displaying 2 results from an estimated 2 matches for "b5x5".
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5x5
2011 Jan 20
1
Constrained Regression
Hi everyone,
I'm trying to perform a linear regression y = b1x1 + b2x2 + b3x3 + b4x4 +
b5x5 while constraining the coefficients such that -3 <= bi <= 3, and the
sum of bi =1. I've searched R-help and have found solutions for
constrained regression using quadratic programming (solve.QP) where the
coefficients are between 0 and 1 and sum to 1, but unfortunately do not
underst...
2010 Mar 15
0
testing hipotheses using GAMLSS package
Hi all.
In a GLM in which g(mu) = b0 + b1X1 + b2X2 + b3X3 + b4X4 + b5X5 + b6X6 + b7X7, if I want to test if b1 + b5 = b2 + b6, I can use the contrast package or multicomp package. How can I do a similar test if I am fitting a GAMLSS using the gamlss package? Thank you for your help. Gustavo