# -*- coding: utf-8 -*-
"""
Created on Wed Sep 20 08:52:00 2017

@author: Miguel Almeida
"""

import numpy

def load_planet_data(file_name):
    """Return matrix with orbital radius and period"""
    rows = []
    lines = open(file_name).readlines()
    
    for line in lines[1:]:
        parts = line.split(',')
        rows.append( (float(parts[1]), float(parts[2])))
        
    return numpy.array(rows)

data = load_planet_data('planets.csv')