[R] integral of the fuction for each value
Tobias Fellinger
tobby @end|ng |rom htu@@t
Sun Oct 21 14:23:07 CEST 2018
Hi,
I'm not entirely sure what you want to calculate.
If you want to integrate by u in the interval from 0 to 4 for every value
of x I would suggest something like this:
x <- rnorm(10,0,1)
f <- function(u,x){
exp((x-u))
}
sapply(x, function(i){
integrate(f,lower=1,upper=4, x=i)$value
})
You can just pass additional arguments to f to integrate, integrate always
integrates by the first argument of the function passed as its first
argument, see the help entry of integrate for more details.
Best Regards, Tobias
On Sun, 2018-10-21 at 12:02 +0000, malika yassa via R-help wrote:
> hello
> please you help me i have this functionx<-rnorm(10,0,1)f<-fuction(u,x) {exp((x-u)}I want to calculate the integral of this function for each value of x{for(i in 1:lenght(x)integrate(f,lower=1,upper=4)
> thinks
>
> [[alternative HTML version deleted]]
>
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