What does a geek do when ordering pizza? Plots the price per square inch, of course.

data.png

pizza_curve.py

import matplotlib.pyplot as plt
import numpy as np

# TBD: Account for the (variable) price of toppings.

prices = [(8, 7.55), (12, 14.95), (14, 17.75), (16, 20.45), (18, 22.95)]
area = lambda d: 3.14*(.5*d)**2
price_per_sqinch = [p / area(d) for (d, p) in prices]

f, ax = plt.subplots()
index = range(len(prices))
bars = plt.bar(index, price_per_sqinch)
middle = bars[0].get_width() / 2
plt.xticks(np.array(index) + middle, [str(d) for (d, p) in prices])

plt.xlabel("diameter (inches)")
plt.ylabel("price per square inch ($)")
plt.title("Extreme Pizza Cost Curve")

plt.savefig("./pizza_price_per_sq_inch.png")

thumbnail.png