# Data Collections¶

Lab Assignment: Data Collections

Your understanding of importing modules, using lists and dictionaries and creating objects from a class will be exercised in this lab.

Be prepared to use your solution for the Classes lab where you wrote the PlayingCard class.

In this lab, you will have to generate a random list of PlayingCard objects for where the suit and rank combinations of each card are randomly choosen. Using this list of randomly created playing cards, you will use dictionaries and lists to store important data about these playing cards, particularly the frequency distribution of each rank-suit combination you created (e.g. like if 10 queen of hearts cards are generated and counted.)

Thanks to the clearly described interface used to communicate to any PlayingCard object, specifically the get_rank() and get_suit() methods, you can just import your “Classes” lab as a module and use your previously written code!

Note: You’ll definitely need to make sure your solutions work for this lab, and if not, please consult the professor or TAs for assistance, ASAP.

1. I provide a starter (skeleton) code file for your solution. You are required to use it. Download lab_data_collections.py and complete it with your code.

2. Your lab assignment requires the use of your solution from the Classes lab. You will import your code as a module and use your PlayingCard class.

The skeleton code includes the necessary import line, just provide your file by placing a copy of your lab_classes.py file in the same directory as your solution code for this lab.

3. The docstrings inside this file describe what each function should do.

4. Replace and complete missing code wherever you see::

#
#


Do not change anything else like function names, parameters or return values. Do not remove the if statements at the start of some functions as they are needed to make sure you are passing the correct values. You will lose points you if you change anything you are not supposed to change.

### Output¶

This is what you should see (your numbers will be different):

Standard deviation for the frequency counts of each rank in suit:
Hearts:  2.3755 cards
Clubs:  1.4880 cards
Diamonds:  1.5607 cards


## Submission Requirements¶

Your file is required to be named lab_data_collections.py.

The following is the grading rubric for this lab to be used by the course graders. The lab is worth 100 points.

Note: There may be additional criteria for grading, this is just a summary of the major rubric items.

SyntaxError Exceptions A program that doesn’t even start due to syntax errors. -30
main() Your program should have main() as the first-called function -10
Import Your solution must import lab_classes.py, and use your PlayingCard class. -15