zabadiel071

const R = require('ramda')

//Returns escalar product 
let escalarProduct = (x1, x2) => R.zipWith( (x1 , x2) => x1 * x2,  x1, x2).reduce((x1,x2) => x1 + x2 , 0 )

//Simple step function 
let step = ( f , thresold) => ( f  < thresold) ? 0 : 1

//Delta value calculation
let delta = (e, x, learningRate) => e * x * learningRate