sicr is an R package to implement the stochastic individual claims reserving which was first published by Dirk Skowasch and Torsten Grabarz (see 08.03.2022 on https://www.qx-club.de/ARCHIV/). It is based on the paper of Murphy & McLennan but extends it in some areas for better applicability under Solvency II.
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The sicr package vignette describes the usage in detail with a complete example.