A while ago, I asked a whether it was possible to multi-iterate over several ndarrays but exclude a certain axis( http://www.mail-archive.com/numpy-discussion@scipy.org/msg29204.html), sort of a combination of PyArray_IterAllButAxis and PyArray_MultiIterNew. My goal was to allow creation of relatively complex ufuncs that can allow reduction or directionally dependent computation and still use broadcasting (for example a moving averaging ufunc that can have changing averaging parameters). I didn't get any solutions, which I take to mean that no one knew how to do this.
I am thinking about trying to make a numpy patch with this functionality, and I have some questions: 1) How difficult would this kind of task be for someone with non-expert C knowledge and good numpy knowledge? 2) Does anyone have advice on how to do this kind of thing? Best Regards, John
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