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modwt
2004 Aug 06
1
: (Lattice): Overlaying more than one trend surface using contourplot() and wireframe()
...######################################
g<- c(80,80,90,90,85,85,85,85,85,92.07,77.93,85,85)
h<- c(170,180,170,180,175,175,175,175,175,175,175,182.07,167.93)
Yield <- c(76.5,77.0,78.0,79.5,79.9,80.3,80.0,79.7,79.8,78.4,75.6,78.5,77.0)
viscosity <- c(62,60,66,59,72,69,68,70,71,68,71,58,57)
molwt <-
c(2940,3470,3680,3890,3480,3200,3410,3290,3500,3360,3020,3630,3150)
###################################################################################
## Fit 2-order Polynomial trend for Yield
Yield.ls <- surf.ls(2, g, h, Yield)
trsurfY<- trmat(Yield.ls,min(g), max(g),min(h), max(h),1...