Specifically, how to debug your code when using the amazing MRAALib library for machine learning in Python.
To set the stage, let’s set up our environment. Make sure you have installed both MRAALib and Jupyter Notebook (if you havent already). If you dont know how to do that, well…you should probably learn how to use Google before we continue.
Now that we have everything ready to go, let’s start by importing the library:
# Importing the MRAALib library as "ml" for easier access and usage
import mraalib as ml
Great! Now we can create a new instance of our MRAALib object and load some data for training:
# Import necessary libraries
import pandas as pd
from sklearn.model_selection import train_test_split
import MRAALib as ml
# Load dataset from CSV file
data = pd.read_csv('dataset.csv')
# Split into train and test sets
train, test = train_test_split(data) # Split the dataset into train and test sets using the train_test_split function from sklearn
# Convert to MRAALib format
X_train = ml.preprocess(train[['feature1', 'feature2']].values) # Preprocess the train data by selecting the 'feature1' and 'feature2' columns and converting them into an array using the preprocess function from MRAALib
y_train = train['target'].values # Select the 'target' column from the train data and convert it into an array
X_test = ml.preprocess(test[['feature1', 'feature2']].values) # Preprocess the test data by selecting the 'feature1' and 'feature2' columns and converting them into an array using the preprocess function from MRAALib
y_test = test['target'].values # Select the 'target' column from the test data and convert it into an array
At this point, you might be thinking to yourself: “Hey, wait a minute! This code looks pretty straightforward. Why do I need comments for that?” Well, bro, let me tell you there are many reasons why adding comments can make your life easier in the long run.
First, it helps other developers (or even future versions of yourself) understand what’s going on in your code. Imagine if someone else had to come along and work with this project after you left for a new job or got hit by a bus. Wouldn’t they appreciate some guidance?
Secondly, comments can help you remember what you were thinking when you wrote the code. Trust me there have been times where I’ve looked at my own code and thought: “What was I even trying to do here?” But if I had added a comment explaining it, then I wouldn’t be in this mess!
Lastly (and most importantly), comments can help you debug your code. Let me give you an example say you have the following line of code that isn’t working:
# This script prints "Hello World!" to the console
print("Hello World!") # prints the string "Hello World!" to the console
But instead, it prints nothing at all. What could be wrong? Well, if we add a comment explaining what this line is supposed to do (as shown above), then we can easily see that something isn’t right. Maybe there’s an error in the code before or after this line that’s causing problems.