Hi, the 'winsor' function to perform winsorization (a kind of trimming) on series has been transplanted from the winsor.gfn package to the updated version of the extra.gfn package. ('extra' is a growing collection of individual smaller functions that are useful mainly for scripting, but also for general use.) Therefore I will remove the winsor.gfn package from the package server. Thanks a lot to Jason He / JoshuaHe for contributing the original winsor package! To use the transplanted function it should be enough to do something like this (after an 'install extra.gfn' if it isn't there already): include extra.gfn series y_winsorized = winsor(y) ... for an existing y series. As always, if something doesn't work, we welcome bug reports or questions here or on the sourceforge tracker (sourceforge.net/p/gretl/bugs). Thanks, Sven