Calculates the mathematical probability of ecological validity of a given experiment, where the Y axis is the percentage of probability and each data point in the graph is a new independent variable being introduced to the experiment. As more independent variables are introduced, the accuracy exponentially diminishes. Needless to say, you need t…

ecological-validity.swift

// Playground - noun: a place where people can play

import Cocoa

var i: Int = 0

func power(#x :Int, #y :Int) -> Int {
    if(y == 0) {
        return 1;
    }
    return (x * power( x:x, y:y-1) );
}

for i in 0..20
{
    var j: Int = power( x:2, y:i) - 1
    var k = Double(j)
    100 / k // this is the line for which you'll want to view the graph
}