On 16-02-2013, at 18:01, julia cafnik julia.caf...@gmail.com wrote:
Dear R-users,
I'm wondering how to calculate this double integral in R:
int_a^b int_c^y g(x, y) dx dy
where g(x,y) = exp(- alpha (y - x)) * b
A very similar question was asked about nine years ago:
thank for your help. already solved it.
Cheers,
J.
On Sun, Feb 17, 2013 at 9:41 AM, Berend Hasselman b...@xs4all.nl wrote:
On 16-02-2013, at 18:01, julia cafnik julia.caf...@gmail.com wrote:
Dear R-users,
I'm wondering how to calculate this double integral in R:
int_a^b int_c^y
On 17-02-2013, at 10:01, julia cafnik julia.caf...@gmail.com wrote:
thank for your help. already solved it.
Show us how.
So that others looking for answers to similar problems in future can find an
answer.
Berend
__
R-help@r-project.org mailing
This function is separable.
If calculating by hand with bounds a -0 and b - 1 i got the result:
theta / kappa * ( 1 + exp( - kappa) / kappa - 1 / kappa)
by putting
theta - 0.1
kappa -0.3
in the above result I got 0.04535
I implemented it in R this way:
integrate(function(y) {
sapply(y,
Hello,
Though I think you should compute that integral symbolically by hand and
then define a function with the result, maybe package pracma can do what
you want.
[functions dblquad(9 and quad2d()]
Hope this helps,
Rui Barradas
Em 16-02-2013 17:01, julia cafnik escreveu:
Dear R-users,
On Feb 16, 2013, at 9:01 AM, julia cafnik wrote:
Dear R-users,
I'm wondering how to calculate this double integral in R:
int_a^b int_c^y g(x, y) dx dy
where g(x,y) = exp(- alpha (y - x)) * b
Thanks for answering!
One way would be to install the cubature package.
--
David
Dear R Members,
I want to know a fast R function to do multidimensional integration. I used
the function 'cuhre' in R2cuba library. But it takes painful time to get the
answer.
I would be thankful if anyone could help me out to solve this problem
Thanks
Niroshan
--
View this message in
Hi,
Try the cubature package, and maybe play with the tolerance.
HTH,
b.
On 13 March 2012 18:39, Niroshan wnnpe...@ucalgary.ca wrote:
Dear R Members,
I want to know a fast R function to do multidimensional integration. I used
the function 'cuhre' in R2cuba library. But it takes painful
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