# Rolling a Die 10 Times with Matlab - Exploring Probabilities and Visualizations

In this article, we will demonstrate how to recreate the experience of rolling a die 10 times using the programming languages Python and Matlab. We will explore the concepts behind probabilities, stat …

Updated October 11, 2023

*Hey! If you love Computer Vision and AI, let's connect on Twitter or LinkedIn. I talk about this stuff all the time!*In this article, we will demonstrate how to recreate the experience of rolling a die 10 times using the programming languages Python and Matlab. We will explore the concepts behind probabilities, statistics, and visualization techniques. Additionally, we will provide code samples in Python to help you understand the process better. As you read along, you’ll get a hands-on approach to implementing these concepts using both Python and Matlab.

## Introduction

Rolling a die 10 times has various applications in gambling, games, simulations, and probability theory. It provides insights into the randomness of outcomes and the likelihood of certain results occurring. In this article, we’ll be taking advantage of two powerful programming languages – Python for its high-level object-oriented features and Matlab for its impressive capabilities in data analysis and visualization. We will explore the process step by step and see how both Python and Matlab contribute to analyzing and understanding die roll simulation results.

## Why Use Python and Matlab?

Python is a widely used, high-level programming language that emphasizes code readability and has vast libraries for data analysis, scientific computing, visualization, and more. It provides flexibility in both syntax and semantics, making it an attractive choice for various domains including probability simulations.

Matlab (short for MATrix LABoratory) is a high-performance language developed by MathWorks specifically for mathematical computation, algorithm development, and technical computing. Its comprehensive library includes tools for visualization, numerical analysis, signal processing, control systems, and more. This combination makes Matlab a go-to tool for various scientific, engineering, and data analysis tasks.

## Simulating Rolling a Die 10 Times Using Python

First, we’ll create a simulation of rolling a die 10 times using the Python programming language. To start with, we’ll need to import certain modules such as `numpy`

, which contains numerous mathematical functions useful for array manipulation and random number generation, and `matplotlib`

for plotting graphs.

```
import numpy as np
import matplotlib.pyplot as plt
# Define function to roll a die and return the result (1-6)
def roll_die():
result = np.random.randint(1, 7) # Generate random integer between 1 and 6
print("Die rolled: {}".format(result))
return result
# Define function to repeat rolling a die 10 times and generate the results list
def roll_die_10_times():
results = []
for i in range(1, 11):
roll_result = roll_die()
results.append(roll_result)
print("The die rolls are: {}".format(results))
# Call the function to simulate rolling a die 10 times
roll_die_10_times()
```

Explanation: In this Python code, we first define two functions – `roll_die()`

, which generates a random number between 1 and 6 (simulating a roll of the die), and `roll_die_10_times()`

, which repeats rolling a die for ten iterations by calling the `roll_die()`

function, appending the result to a list called `results`

. After all ten rolls have been made, we print the results list to display the final outcomes.

## Analyzing Die Rolls with Matlab

Now let’s use Matlab to analyze and visualize the data generated from our Python simulation. To do this, we need to convert the array of die roll results to a numeric vector in Matlab and utilize its extensive data analysis tools for further computation.

```
% Load Python-generated output into Matlab
result_vector = np.array([12, 4, 3, 6, 5, 2, 3, 1, 6, 4]); % Convert Python list to a numeric vector in Matlab
% Create a histogram of the die roll results using the 'count' function and a predefined bin size (8) for better visualization.
counts = histc(result_vector, bins=8);
% Plot the resulting histogram with bar width set to 1 and colors specified in red color.
barwidth = 1;
figure();
plot(barwidth * [0:7], counts, 'b', 'LineWidth', 3) % Plot a black line with 3-point width
hold on;
lineColor = get(gca, 'Color'); % Get the color of the current axis
lineColor(1, 2, 4) = [0 0 0]; % Change the first three elements to black color
set(gca, 'Color', lineColor); % Set new color for the plot
hold off;
xlabel('Die Rolls');
ylabel('Frequency of Occurrence');
title('Histogram of Die Rolls');
```

Explanation: We first load the Python-generated output into Matlab as a numeric vector. Then, using Matlab’s `histc()`

function to count the occurrences in bins (a defined number of intervals), we create a histogram representation of the data. By adjusting various visual settings such as bar width, plot style, and colors, we can make our chart more presentable and informative. Lastly, we add axis labels and a title to the graph for better comprehension.

## Conclusion

In this comprehensive guide, we discussed how to simulate rolling a die 10 times using Python and Matlab, providing insights into probabilities, statistical analysis, and visualization techniques along the way. By combining these two powerful programming languages' capabilities, you can gain deeper understanding of probability distributions, statistics, and data analysis while experimenting with various simulations. With practice, you will be able to create more complex simulations in various domains, making use of both Python and Matlab’s strengths for maximum efficiency.