
Build a logistic regression model from scratch on the breast cancer Wisconsin original dataset via the UCI repository, and evaluate classification with a training-test split and 10-fold cross-validation.
Import pandas as pd to load the dataset, split into training and test sets with psychic learn, and train a logistic regression model on the training set.
Learn how to import a breast cancer dataset in Python using pandas, create the feature matrix x and label y, and prepare data for logistic regression.
Split the dataset into training and test sets to train a logistic regression model that predicts tumor status (benign or malignant) and evaluate on unseen data using train_test_split.
Train the logistic regression model on the training set using three simple lines of code from the linear model module, creating a classifier and calling the fit method.
Train a logistic regression model, predict test set outcomes, and evaluate with 10-fold cross validation to obtain robust accuracy, predicting benign or malignant tumors.
Learn to build and interpret a confusion matrix for a logistic regression model, evaluate predictions on the test set with scikit-learn metrics, and discuss accuracy and cross-validation.
Compute the accuracy with 10-fold cross-validation on a logistic regression model for breast cancer prediction and report the mean accuracy and standard deviation, 96.7% and 1.97%.
Did you know that approximately 70% of data science problems involve classification and logistic regression is a common solution for binary problems?
Logistic regression has many applications in data science, but in the world of healthcare, it can really drive life-changing action.
In this SuperDataScience case study course, learn how to detect breast cancer by applying a logistic regression model on a real-world dataset and predict whether a tumor is benign (not breast cancer) or malignant (breast cancer) based off its characteristics.
By the end of the course, you will be able to build a logistic regression model to identify correlations between the following 9 independent variables and the class of the tumor (benign or malignant).
Clump thickness
Uniformity of cell size
Uniformity of cell shape
Marginal adhesion
Single epithelial cell
Bare Nuclei
Bland chromatin
Normal nucleoli
Mitoses
Logistic regression can identify important predictors of breast cancer using odds ratios and generate confidence intervals that provide additional information for decision-making. Model performance depends on the ability of the radiologists to accurately identify findings on mammograms.
Join AI expert Hadelin de Ponteves as you code the solution along with him in this 1-hour, 3-part case study:
Part 1: Data Preprocessing
Importing the dataset
Splitting the dataset into a training set and test set
Part 2: Training and Inference
Training the logistic regression model on the training set
Predicting the test set results
Part 3: Evaluating the Model
Making the confusion matrix
Computing the accuracy with k-Fold cross-validation
Testing your skills with practical courses is one of the best and most enjoyable ways to learn data science…and now we’re giving you that chance for FREE.
Plus, you’ll do it all using Google’s Colab free, browser-based notebook environment that runs completely in the cloud. It’s a game-changing interface that will save you time and supercharge your data science toolkit.
Click the ‘Enroll Now’ button to join Hadelin’s class today!
More about logistic regression:
Logistic regression is a method of statistical analysis used to predict a data value based on prior observations of a dataset. A logistic regression model predicts the value of a dependent variable by analyzing the relationship between one or more existing independent variables.
In data science, logistic regression is a Machine Learning algorithm used for classification problems and predictive analysis.
More real-world applications of logistical regression include:
Bankruptcy predictions
Credit scoring
Consumer behavior
Customer retention
Spam detection