LING 408/508: Programming for Linguists Lecture 25 December 2 nd.

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Presentation transcript:

LING 408/508: Programming for Linguists Lecture 25 December 2 nd

Last Time Monte Carlo Simulation Player A has an unfair advantage!

100,000 games

1,000,000 games

rball2.py Let's make it fair:

rball2.py Let's make it fair: swap serves

100,000 games

1,000,000 games

Chapter 10: Defining Classes

Chapter 10: MSDie Multi-Sided Die: self is just a conventional name for the implicit 1 st argument to all methods inside the class: could call it anything …

Chapter 10: MSDie From last lecture: – library module random

Chapter 10: Projectile Cannonball example: – how far does a cannonball fly? – parameters: launch angle height above ground initial velocity – gravity: 9.8 ms -2 – (without calculus) simulation: time interval

Chapter 10: Projectile

Object-oriented style: – assume a Projectile class: method update()

Documentation Triple quoted documentation strings – can span multiple lines help(module) help(module.method) print module.method.__doc__

Documentation

Chapter 10: Projectile

projectile2.py sys.argv list of command line arguments sys.exit(1) quit with exit code 1