[R] function of an integral

Wu Gong wg2f at mtmail.mtsu.edu
Wed Jul 21 06:17:22 CEST 2010


Hi, 

I'm trying to replicate your program. It may be not the same as yours, hope
it helps.


## Create a vector of numbers
cip <- seq(1.0,2.5,by=0.1)

## Create ecdf function
Fn <- ecdf(cip)

## Create f function
f <- function(x){(1-Fn(x))^4}

## Create integrate function
## Because the integrate function is not vectorized
fi <- function(f,x) {
	res <- numeric(length(x))
	for(i in 1:length(x)){res[i] <- integrate(f,x[i],2.967)$value}
	res}

## The final results
bip <- cip + (1/f(cip))*fi(f,cip)



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