interval.plot {PASWR} | R Documentation |
Function to graph intervals
interval.plot(ll, ul, parameter = 0)
ll |
vector of lower values |
ul |
vector of upper values |
parameter |
value of the desired parameter (used when graphing confidence intervals) |
Draws user-given intervals on a graphical device.
Alan T. Arnholt <arnholtat@appstate.edu>
set.seed(385)
samples <- 100
n <- 625
ll <- numeric(samples)
ul <- numeric(samples)
xbar <- numeric(samples)
for (i in 1:samples){
xbar[i] <- mean(rnorm(n, 80, 25))
ll[i] <- xbar[i] - qnorm(.975)*25/sqrt(n)
ul[i] <- xbar[i] + qnorm(.975)*25/sqrt(n)
}
interval.plot(ll, ul, parameter = 80)