Python Programming: Generating A Simple Rock, Paper, Scissors Table Plot

Hi there. In this programming post, I show how to generate a simple rock, paper, scissors table plot in Python. I have enjoyed doing this as the plot came out nice and clean.

The original page is from here.

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A Basic Rock, Paper, Scissors Table Plot

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To start off, import the pandas, seaborn, numpy and matplotlib's pyplot modules into Python.

### Seaborn Approach - Basic Rock, Paper, Scissors
# https://stackoverflow.com/questions/33158075/custom-annotation-seaborn-heatmap
# https://stackoverflow.com/questions/40734343/artificial-tick-labels-for-seaborn-heatmaps

import pandas as pd
import seaborn as sns
import numpy as np
from matplotlib import pyplot as plt

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Next, I create a list of outcome options, a two dimensional Numpy array of numbers and a two dimensional Numpy array of outcome labels. In the second list, a one represents a win, a zero is a draw and a negative one is a loss.

options = ["Rock", "Paper", "Scissors"]

num_outcomes = np.array([[0, 1, -1],
                    [-1, 0, 1],
                    [1, -1, 0]])

labels = np.array([["Draw", "Win", "Lose"],
                    ["Lose", "Draw", "Win"],
                    ["Win", "Lose", "Draw"]])

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To start the plotting part, use fig, ax = plt.subplots(). Seaborn's heatmap function is attached to the variable ax. To enable the labels in the heatmap, use the arguments annot = , xticklabels = and yticklabels = .

Plot labels can be added in with set_xlabel, set_ylabel and plt.title.

fig, ax = plt.subplots()

ax = sns.heatmap(num_outcomes, annot = labels, fmt = '',
                 xticklabels = options, yticklabels = options)

ax.set_xlabel("\n\n Your Choice")
ax.set_ylabel("Opponent's Choice \n\n")
plt.title("Rock, Paper, Scissors Outcome Table \n\n") 
plt.show(fig)

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The generated plot looks nice and it quite easy to follow.

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References

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• https://s3.amazonaws.com/assets.datacamp.com/blog_assets/Python_Seaborn_Cheat_Sheet.pdf
• https://stackoverflow.com/questions/33158075/custom-annotation-seaborn-heatmap
• https://stackoverflow.com/questions/40734343/artificial-tick-labels-for-seaborn-heatmaps