Hello again,
I am trying to plot out activity regions the user did on the screen via
plotting a hexbin. I have 20 users whose information i want to plot out
and it stops in the user 16 with the message Error in M[, 1] : incorrect
number of dimensions. Any advice would be appreciated as i dont
Thank you, Duncan, it works now with rgl.snapshot (i did have to upgrade to
2.12.1). Is there any way to manipulate the size of the created image? The
created plots are a bit small (256*256)
Thank you for your help once again :)
Best,
Jurica
On Tue, Jan 4, 2011 at 8:31 AM, Duncan Murdoch wrote
Hi,
I have been trying to output my graphs to a file (jpeg, pdf, ps, it
doesnt matter) but i cant seem to be able to get it to output. I tried a
few things but none of them worked and am lost as what to do now. I am
using the scatter3d function, and it prints out the graphs on tot he
screen w
I want to calculate Newey West robust standard error using NeweyWest. Comparing
the results to what I get in STATA, in order to get the same results in I need
to specify "prewhite=0". Can someone explain what this prewhite command means?
Thanks
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You should try installing fGarch package. Then you can simulate various garch
models using garchsim command. Hope it help.
jurica
SUMANTA BASAK-4 wrote:
>
> Hi All,
>
> I,m trying to do a GARCH simulation in R 2.3.0 release
> in Windows XP. I've seen garchsim functi
muj)%*%(p-e-muj))/(2*((delta^2+sigma^2
)
return(-logl)
}
out <- optim(c(1,1,1,1,1,1),fn=mle, method = "BFGS")
Unfortunately I get the error that Error in optim(c(1, 1, 1, 1, 1, 1), fn =
mle, method = "BFGS") : initial value in 'vmmin'
ut <- optim(c(0,0,0),mle, method = "L-BFGS-B",
lower = c(0, -Inf, -Inf),
upper = c(Inf, Inf, Inf))
The "result" I get is: " Error in optim(c(0, 0, 0), mle, method = "L-BFGS-B",
lower = c(0, -Inf,:L-BFGS-B needs finite values of 'fn
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