can not run CI function after installation

[WayneJiao]

Hi

I've successfully install the package by downloading the master zip file:
devtools::install("~/Projects/BiomarkerDiscovery/prog/mCI-master")

However, after installation, I wasn't able to run the example code:

x <- 1:30; y <- x*x
CI(x=x, y=y, deltaX=0, deltaY=0, alpha =0, outx = 1, npermut=10000)
Error in CI(x = x, y = y, deltaX = 0, deltaY = 0, alpha = 0, outx = 1, :
could not find function "CI"