
Learn to set up and use Google Colab to run Python in your browser without installing software, create a new notebook, and leverage Google Drive storage and sharing.
Download and install essential Python modules such as numpy, pandas, matplotlib, and seaborn, then import them to analyze data and create plots and heatmaps for the breast cancer project.
Download the breast cancer dataset from Kaggle using Google and load it into Colab. Compare manual download and direct Google Colab loading, unzip files, and inspect dataset structure.
Download the breast cancer diagnostic dataset from Kaggle directly in Colab, configure your Kaggle API token, unzip, and load the data with a couple of lines of code.
Explore how to load the breast cancer Wisconsin dataset, inspect its shape and data types, and perform initial summary statistics to prepare features and identify malignant versus benign diagnoses.
Explore data analysis on a breast cancer dataset by identifying missing values, inspecting data types, and dropping the column with all missing values to prepare for machine learning predictions.
Visualize malignant (M) and benign (B) cell counts, demonstrating value counts and a seaborn bar plot, and encode the diagnosis with label encoding for machine learning readiness.
Encode categorical data to numeric with a label encoder, convert the diagnosis column to 0/1, then generate a seaborn pair plot to reveal pairwise relationships among features.
Explore how heat maps reveal the correlation between columns and visualize the relationships among variables using Seaborn, color palettes, and figure size adjustments.
Explore how to predict breast cancer by preprocessing data with label encoding, performing an 80/20 train-test split, and applying feature scaling and standardization for classification models.
Train and evaluate a logistic regression classifier within a supervised learning framework to predict cancer as malignant or benign, using probabilistic outputs between 0 and 1 and a threshold.
Build a decision tree classifier, a supervised learning method using labeled data to classify outcomes. Understand the tree, decision and leaf nodes, and criteria like entropy and the Gini index.
Build a random forest classifier by combining multiple decision trees, using random data subsets and averaging to boost accuracy and prevent overfitting, while applying an entropy criterion.
Evaluate model performance using a confusion matrix to interpret true positives, true negatives, false positives, and false negatives, and compute accuracy on the training dataset for breast cancer classifiers.
Explore how to use confusion matrix, classification report, and accuracy score to assess and compare logistic, decision, and random models, interpreting precision, recall, and accuracy.
Explore breast cancer prediction with machine learning by comparing model predictions to actual prediction using decision tree and random forest, achieving 99.7% accuracy in a hands-on Google Colab workflow.
Here you will learn to build three models that are Logistic regression model, the Decision Tree model, and Random Forest Classifier model using Scikit-learn to classify breast cancer as either Malignant or Benign.
We will use the Breast Cancer Wisconsin (Diagnostic) Data Set from Kaggle.
Prerequisite
You should be familiar with the Python Programming language and you should have a theoretical understanding of the three algorithms that is Logistic regression model, Decision Tree model, and Random Forest Classifier model.
Learn Step-By-Step
In this course you will be taught through these steps:
Section 1: Loading Dataset
Introduction and Import Libraries
Download Dataset directly from Kaggle
2nd Way To Load Data To Colab
Section 2: EDA - Exploratory Data Analysis
Checking The Total Number Of Rows And Columns
Checking The Columns And Their Corresponding Data Types (Along With Finding Whether They Contain Null Values Or Not)
2nd Way To Check For Null Values
Dropping The Column With All Missing Values
Checking Datatypes
Section 3: Visualization
Display A Count Of Malignant (M) Or Benign (B) Cells
Visualizing The Counts Of Both Cells
Perform LabelEncoding - Encode The 'diagnosis' Column Or Categorical Data Values
Pair Plot - Plot Pairwise Relationships In A Dataset
Get The Correlation Of The Columns -> How One Column Can Influence The Other Visualizing The Correlation
Section 4: Dataset Manipulation on ML Algorithms
Split the data into Independent and Dependent sets to perform Feature Scaling
Scaling The Dataset - Feature Scaling
Section 5: Create Function For Three Different Models
Building Logistic Regression Classifier
Building Decision Tree Classifier
Building Random Forest Classifier
Section 6: Evaluate the performance of the model
Printing Accuracy Of Each Model On The Training Dataset
Model Accuracy On Confusion Matrix
2nd Way To Get Metrics
Prediction
Conclusion
By the end of this project, you will be able to build three classifiers to classify cancerous and noncancerous patients. You will also be able to set up and work with the Google colab environment. Additionally, you will also be able to clean and prepare data for analysis.