data.py

# -*- coding: utf-8 -*-
"""
Created on Thu Apr 13 21:51:23 2017

@author: ben
"""
import csv
import numpy

import matplotlib.pyplot as plt

myfile = open('train.csv')
myreader = csv.DictReader(myfile)

avg_age = 29.5

def get_age(line):
    if line['Age'] == '':
        age = avg_age
    else:
        age = float(line['Age'])
    return age
    
def predict(datapoint):
    # return true or false; a prediction of whether the pass survives
    age = get_age(datapoint)

    if datapoint['Sex'] == 'female':
        if age > 65:
            return False
        else:
            return True
    else:
        if age <= 15:
            return True
        else:
            return False


predictions = []
true_values = []

#survivor_ages  = []
#other_ages = []

males = []
females = []
for line in myreader:
    
    mypred = predict(line)
    predictions.append(mypred)

    if line['Survived'] == '1':
        survived = True
#        survivor_ages.append(get_age(line))
        true_values.append(True)
    else:
        survived = False
#        other_ages.append(get_age(line))
        true_values.append(False)

    if line['Sex'] == 'male':
        males.append(survived)
    else:
        females.append(survived)
#plt.hist(males, bins=2)
#plt.show()
#plt.hist(females, bins=2)
#plt.show()
#print numpy.mean(survivor_ages), numpy.std(survivor_ages)
#print numpy.mean(other_ages), numpy.std(other_ages)
#
#plt.hist(survivor_ages)
#plt.show()
#plt.hist(other_ages)
#plt.show()

correct = 0.0
for i in range(len(predictions)):
    if predictions[i] == true_values[i]:
        correct += 1
        
print 'Accuracy: ', (correct/len(predictions)) * 100

functions.py

#Enter numbers separated by a comma: 1,9,5,11,-2
#Biggest: 11
#Smallest: -2
#Mean: 4.8
#Sorted: [-2,1,5,9,11]


def mymean(numbers):
    return sum(numbers)/float(len(numbers))
    
#def mymath(a, b, c):
#    returnn a * b - c

def print_info(a):
    max_value =  max(a)
    print 'Biggest: ', max_value
    print 'Smallest: ', min(a)
    print 'Mean: ', mymean(a)
    print 'Sorted: ', sorted(a)
    

grades = {
    'ben': [80, 98, 99, 100],
    'bob': [60, 70, 80],
    'mary': [89, 75, 100]
}

for student in grades.keys():
    print student
    print_info(grades[student])
    print ''

#nums_to_sort = input('Enter your numbers: ')
#nums_to_sort = [10, 30, 40, 5]
#print_info(nums_to_sort)

#mydict = {
#    'car': 'a 4 wheeled object for getting you places',
#    'truck': 'a 4 wheeled things for trasporting lots of stuff',
#    'house': 'a place to live',
#    'inner_dict': {
#        'cat': 'another furry friend'
#    }
#}
#
#mydict['dog'] = 'a furry 4 legged friend'
#mydict['car'] = 'something with 4 wheels'
#
#print 'dog' in mydict
#print 'turtle' in mydict