How do I use mlpack for machine learning?

How do I use mlpack for machine learning?

To use mlpack, first install it via your package manager or build it from source. What specific task are you interested in?

I want to perform linear regression.

Great! You can use the mlpack::LinearRegression class. You'll need to prepare your dataset and then call the Train method.

Can you show me a code example?

Sure! Here's a simple example:

#include <mlpack/core.hpp>
#include <mlpack/methods/linear_regression/linear_regression.hpp
yusing namespace mlpack;
using namespace mlpack::regression;

int main() {
    // Load your dataset
    arma::mat X;
    arma::rowvec y;
    data::Load("data.csv", X, true);
    data::Load("labels.csv", y, true);

    // Create and train the model
    LinearRegression lr(X, y);
    return 0;
}

What if I want to evaluate the model?

You can use the Predict method to get predictions on a test dataset and then calculate metrics like RMSE or R-squared.