This happened in https://trac.sagemath.org/ticket/29662, as requested by kcrisman. I just looked at that ticket and added a comment about several additional examples where deprecating mean breaks things in subtle ways...
On Sat, Feb 12, 2022 at 7:14 PM Samuel Lelievre <samuel.lelie...@gmail.com> wrote: > > Dear sage-devel, > > Taking averages is a common operation, and a `mean` function > such that `mean(xx)` returns `sum(xx) / len(xx)` regardless of > the type of objects in the iterable `xx` is extremely convenient. > > For instance, for a polygon whose vertices `uu` have coordinates > in a number field and are represented as vectors over that field, > `mean(uu)` finds the centre of that polygon. To center the polygon > at the origin, use `c = mean(uu)` and `vv = [u - c for u in uu]`. > > In Sage 9.5, using `mean` displays a warning: > ``` > DeprecationWarning: sage.stats.basic_stats.mean is deprecated; > use numpy.mean or numpy.nanmean instead > ``` > This is after #29662 was merged in SageMath 9.5.beta1. > > Alas, `numpy.mean` cannot find the mean of a list of vectors > over a number field. > > Of course, as a workaround, I can define > > def mean(xx): > r""" > Return the mean of this iterable. > """ > return sum(xx) / len(xx) > > and place that in an `init.sage` file in my `~/.sage` folder. > > Having that built into Sage is so much more convenient though. > Can we have it back? > > Kind polygonal regards, --Samuel > > -- > You received this message because you are subscribed to the Google Groups > "sage-devel" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to sage-devel+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/sage-devel/60fe4b1c-db88-4caa-8d13-670b9b3edb79n%40googlegroups.com. -- William (http://wstein.org) -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-devel/CACLE5GDvWCNCL2mFh0qje6gpeUNZKt6hnn3AQvguvFY7SxdEgQ%40mail.gmail.com.
