This is not homework, I calculate some expectations and to finish that I
must solve integral like this one..
Upper bound have some unknown parameter, but I dont know how to write it in
R.
Do I must define m like symbol, or something else, just need help with that.
I know how this work in MatLab, but in R I have problem.
Is there any solution how to solve integral like this one?
Can you help me please little more or direct me to right way, I will
appreciate your effort.
Thanks
On Sun, Dec 4, 2011 at 6:06 AM, David Winsemius <dwinsem...@comcast.net>wrote:
>
> On Dec 3, 2011, at 10:23 PM, grttt nbbfg wrote:
>
> Sorry for my English, is not my first language..
>>
>> I have some trouble in terms of using integrate function in R.
>> fx is a function of m and x where m is supposed to be a unknown parameter.
>>
>
> R is not an algebraic solver (and R-help is not a homework list.).
>
>
>
>> fx=function(m,x){
>>>
>> + x*2/(3*m)*(1-x/(3*m))
>> + }
>>
>> The problem is in upper bound, it depends on parameter m.
>>
>> integrate(fx,lower=0,upper=3***m)$value
>>>
>>
>> Is it possible to use the integrate function when bounds depend on a
>> parameter?
>>
>
> If it is known, yes. You could also do some investigation:
>
> curve(x*2/(3*5)*(1-x/(3*5)), 0, 15)
>
>
>
>> How to define m to solve this integral? The result should be m.
>>
>
> As I said, no homework answers here.
>
[[alternative HTML version deleted]]
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
