casperyc casperyc at hotmail.co.uk writes:
I don't know what is wrong with your Maple calculations, but I think
you should check them carefully, because:
(1) As Petr explained, the value of the integral will be 0.5
(2) The approach of Peter still works and returns : 0.4999777
(3) And the same
The quadinf command in library pracma still fails when mu=-2.986731 with
sigma=53415.18.
While Maple gives me an estimate of 0.5001701024.
Maple: (for those who are interested)
myf:=(mu,sigma)-
casperyc casperyc at hotmail.co.uk writes:
Is there any other packages to do numerical integration other than the
default 'integrate'?
Basically, I am integrating:
integrate(function(x) dnorm(x,mu,sigma)/(1+exp(-x)),-Inf,Inf)$value
The integration is ok provided sigma is 0.
However, when
Hans W Borchers hwborchers at googlemail.com writes:
casperyc casperyc at hotmail.co.uk writes:
Is there any other packages to do numerical integration other than the
default 'integrate'?
Basically, I am integrating:
integrate(function(x)
On Fri, Mar 23, 2012 at 01:27:57PM -0700, casperyc wrote:
Hi all,
Is there any other packages to do numerical integration other than the
default 'integrate'?
Basically, I am integrating:
integrate(function(x) dnorm(x,mu,sigma)/(1+exp(-x)),-Inf,Inf)$value
The integration is ok
On Mar 24, 2012, at 09:46 , Petr Savicky wrote:
Integrating with infinite limits is necessarily a heuristic.
...as is numerical integration in general. In the present case, the infinite
limits are actually only half the problem. The integrate() function is usually
quite good at dealing with
Hi all,
Is there any other packages to do numerical integration other than the
default 'integrate'?
Basically, I am integrating:
integrate(function(x) dnorm(x,mu,sigma)/(1+exp(-x)),-Inf,Inf)$value
The integration is ok provided sigma is 0.
However, when mu=-1.645074 and sigma=17535.26
It
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