Ambient magnetic field-based positioning with smartphones: a comparison of different f ingerprinting methods

This dataset provides athe supporting material for the work entitled Ambient Magnetic Field-Based Positioning with Smartphones: A Comparison of Different Fingerprinting Methods, presented at the 2025 International Instrumentation and Measurement Technology Conference (I2MTC 2025) and published in the Zenodo repository. The document includes the following components: 1) A description of the experimental environment and setup. 2) An extended version of the results. 3) A comprehensive descriptor of the attached database. 4) Documentation of the accompanying code.