Dear all, I have a very basic (maybe stupid) question. I need to evaluate a piecewise function many times. My naive approach is to do something like: function myPiecewise(a,b) if a < 0 return 0.5*a + b else return - 2.5*a + b end end Is that an efficient way of implementing piecewis…

I would think that your implementation is fast. After all, it is only a single branch and should only take a few nanoseconds to run. Unless this is a serious performance bottleneck (which I doubt) I wouldn’t care about optimising it (if possible). FWIW: julia> @btime myPiecewise($(Ref(1))[],$(Ref(…

Evaluate Piecewise Functions Effciently

General Usage Performance

rafael.guerra February 23, 2021, 10:12am 2

Check this older post on same topic.

2 Likes

Topic		Replies	Views
Performant piecewise function evaluation Performance question , piecewise	4	1655	August 30, 2020
Are branches in Julia a problem for performance? Performance	10	1084	December 29, 2023
Type stability for piecewise defined functions with expensive parts Performance performance , type-stability	8	594	April 28, 2021
Branch elimination in Julia Performance question	7	1070	July 22, 2020
IF...ELSEIF...ELSE performance Performance	16	24003	May 29, 2019

Evaluate Piecewise Functions Effciently

Related topics