Hi @amanriqu,
I have created this branch and merge request following the Núria's instructions to include the new function in the s2dv package.
Could you please test it and review the documentation to see if there is anything missing? The code is here: https://earth.bsc.es/gitlab/es/s2dv/-/blob/develop-RandomWalkTest/R/RandomWalkTest.R
Thank you very much,
Carlos