MATLAB vs Python vs R comparison - Hands-On Comparison

MATLAB vs Python vs R Comparison

📖 Scenario: You are a data analyst who wants to compare the basic syntax and data handling of MATLAB, Python, and R. You will create simple data structures and perform basic operations in MATLAB to understand how it differs from Python and R.

🎯 Goal: Build a MATLAB script that creates a numeric array, sets a threshold value, filters the array based on the threshold, and displays the filtered result. This will help you see how MATLAB handles arrays and logical indexing compared to Python and R.

📋 What You'll Learn

Create a numeric array called data with the values [10, 25, 30, 45, 50]

Create a variable called threshold and set it to 30

Use logical indexing to create a new array filtered_data containing only values from data greater than threshold

Display the filtered_data array

💡 Why This Matters

🌍 Real World

Data analysts often need to filter and analyze numeric data sets. MATLAB is popular in engineering and scientific fields for such tasks.

💼 Career

Understanding how to manipulate arrays and filter data in MATLAB is useful for roles in data analysis, engineering, and research where MATLAB is commonly used.

1

Create the initial data array

Create a numeric array called data with the values [10, 25, 30, 45, 50].

MATLAB

% Create the data array
% Your code here

Need a hint?

Use square brackets [] to create an array in MATLAB.

2

Set the threshold value

Create a variable called threshold and set it to 30.

MATLAB

data = [10, 25, 30, 45, 50];
% Set the threshold value
% Your code here

Need a hint?

Assign the number 30 to the variable threshold using the equals sign =.

3

Filter the data using the threshold

Use logical indexing to create a new array called filtered_data that contains only the values from data that are greater than threshold.

MATLAB

data = [10, 25, 30, 45, 50];
threshold = 30;
% Filter data greater than threshold
% Your code here

Need a hint?

Use data(data > threshold) to select elements greater than the threshold.

4

Display the filtered data

Display the filtered_data array using the disp function.

MATLAB

data = [10, 25, 30, 45, 50];
threshold = 30;
filtered_data = data(data > threshold);
% Display the filtered data
% Your code here

Need a hint?

Use disp(filtered_data) to print the array to the console.