Hello,
I have the following example.
testpdf - function(x,y){
pdf()
#plot(x,y)
xyplot(x~y)
dev.off()
}
source(testpdf.R)
x=1:1000
testpdf(x,x)
with xyplot, the output is a file that can not be
read because it has no pages. With plot it works
fine. If I do it manually (from the GUI
Hello,
I am trying to estimate 4 parameters of a non-linear
model using nls.
My model function is a Fourier integral and is very
expensive to
calculate. I get the following error:
theta0 - c(0.045, 1.02*10^(-4), 0.00169,
5.67*10^(-4))
res - nls(log(y) ~ log(model(theta,r,t)),
data=dataModel,
Dear list,
I'm migrating a project from Matlab to R, and I'm
facing a relatively complicated problem for nls. My
objective function is below:
objFun - function(yEx,xEx,tEx,gamma,theta,kappa){
yTh - pdfDY(xEx,tEx,gamma,theta,kappa)
sum(log(yEx/yTh)^2)
}
The equation is
