Matlab code to calculate the vertical separation, dip slip, heave, and throw from a topographic profile across a fault scarp Written by Christine Regalla in 2016. Used to calculate vertical separation in the following manuscripts: Morell, K.D., Regalla, C., Leonard, L.J., Amos, C., Levson, V., 2017. Quaternary Rupture of a Crustal Fault beneath Victoria, British Columbia, Canada. GSA Today, 27(3). Regalla, C., Kirby, E., Mahan, S., McDonald, E., Pangrcic, H., Binkley, A., Schottenfels, E., LaPlante, A., Sethanant, I. and Lynch, E.M., 2022. Late Holocene rupture history of the Ash Hill fault, Eastern California Shear Zone, and the potential for seismogenic strain transfer between nearby faults. Earth Surface Processes and Landforms. onlinelibrary.wiley.com/doi/full/10.1002/esp.5432 Clarke, J., Shillington, D. J., Regalla, C., Gaherty, J. B., Estep, J., Wiens, D. A., et al. (2024). Controls on bending-related faulting offshore of the Alaska Peninsula. Geochemistry, Geophysics, Geosystems, 25, e2023GC011271. https://doi.org/10.1029/2023GC011271