How can I choose to use logistic regression for a particular project?

In the context of data science, logistic regression is considered a suitable choice for the email spam classification task under several conditions:-

Linear relationship

The logistic regression would help in assuming a linear relationship between the features and the log odds of the target variable.

Binary classification

The logistic regression is designed in a manner by which the binary classification task can be done, where the target variable has two possible outcomes.

Interpretability

The logistic regression can provide interpretable results. It is so because as the coefficient associated with each feature, it would indicate that feature on the log odds of the target variable.

Computational efficiency

The logistic regression is famous for its computational Effie which can help handle large datasets with many features.

Here is an example given of how you can execute logistics regression for an email spam classification by using the Python programming language and sci-kit-learn:-

Import pandas as pd

From sklearn.model_selection import train_test_split

From sklearn.linear_model import LogisticRegression

From sklearn.metrics import accuracy_score, precision_score, recall_score

# Load the dataset

Data = pd.read_csv(‘spam_dataset.csv’)

# Split the dataset into features (X) and target variable (y)

X = data.drop(columns=[‘spam’])

Y = data[‘spam’]

# Split the data into training and testing sets

X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=0.2, random_state=42)

# Initialize the logistic regression model

Model = LogisticRegression()

# Train the model

Model.fit(X_train, y_train)

# Predict on the testing set

Y_pred = model.predict(X_test)

# Evaluate the model

Accuracy = accuracy_score(y_test, y_pred)

Precision = precision_score(y_test, y_pred)

Recall = recall_score(y_test, y_pred)

Print(“Accuracy:”, accuracy)

Print(“Precision:”, precision)

Print(“Recall:”, recall)