Hi
I tried to do similar thing and did get great answer from Alberto Monteiro
http://tolstoy.newcastle.edu.au/R/e4/help/08/01/0682.html
However I finally managed to do it by slicing space by combination of
image and contour together with putting numbers on contour. Then I used
scizors and
I'm basically put off by the question itself. Plotting a 4-dimensional
graph is rather complicated if the world has only 3 dimensions. A
4-dimensional representation is typically a movie (with time as the
4th dimension). You could try to project a heatmap on a 3D surface
graph, but I doubt this
On 07/10/2009 5:50 PM, gcheer3 wrote:
Thanks for your reply.
But I don't think it will really help. My problem is as follows:
I have 20 observations
y - rnorm(N,mean= rep(th[1:2],N/2),sd=th[3])
I have a loglikelihood function for 3 variables mu-(mu1,mu2) and sig
loglike -
Suppose there are 4 variables
d is a function of a , b and c
I want to know how a, b and c change will make d change
It will be straightforward to see it if we can graph the d surface
if d is only a function of a and b, I can use 'persp' to see the surface of
d. I can easily see at what
Thanks for your reply.
But I don't think it will really help. My problem is as follows:
I have 20 observations
y - rnorm(N,mean= rep(th[1:2],N/2),sd=th[3])
I have a loglikelihood function for 3 variables mu-(mu1,mu2) and sig
loglike - function(mu,sig){
temp-rep(0,length(y))
sorry for y
y=rnorm(20,mean= rep(th[1:2],10),sd=th[3])
th=c(0, 0.5, 1)
gcheer3 wrote:
Thanks for your reply.
But I don't think it will really help. My problem is as follows:
I have 20 observations
y - rnorm(N,mean= rep(th[1:2],N/2),sd=th[3])
I have a loglikelihood function for 3
Suppose there are 4 variables
d is a function of a , b and c
I want to know how a, b and c change will make d change
It will be straightforward to see it if we can graph the d surface
if d is only a function of a and b, I can use 'persp' to see the surface of
d. I can easily see at what values
On 04/10/2009 3:14 PM, gcheer3 wrote:
Suppose there are 4 variables
d is a function of a , b and c
I want to know how a, b and c change will make d change
It will be straightforward to see it if we can graph the d surface
if d is only a function of a and b, I can use 'persp' to see the surface
How about : google r graph gallery 4d ?
abs
On Sun, Oct 4, 2009 at 3:31 PM, Duncan Murdoch murd...@stats.uwo.ca wrote:
On 04/10/2009 3:14 PM, gcheer3 wrote:
Suppose there are 4 variables
d is a function of a , b and c
I want to know how a, b and c change will make d change
It will be
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