Measurements accompayning our article [1] and the repository https://github.com/tbreunung/FrID The folder 'MagMechOsci.zip' contains scripts and data for the magneto-mechanical oscillators studies in Section 3.1. These incldue Single degree-of-freedom configuration (subfolder: SDOF) Two and three degree-of-freedom configurations (subfolders: Three_Beams and Two_Beams>Separated Modes) Internally resonant configuration (subfolder: Two_Beams>Internal Resonance) The folder 'ClampedOsci.zip' contains scripts and data for the oscillator with campling nonlinearities studied in Section 3.2 of [1]. In this tutorial I walk you through the steps on how to use FrID. Consider also listening to my research talk on this topic. [1] Breunung, T., & Balachandran, B. (2024). Frequency response based identification of nonlinear oscillators. Journal of Sound and Vibration, 118651. https://doi.org/10.1016/j.jsv.2024.118651