Comments on: Defining piecewise functions

By: JGarcia177

JGarcia177 — Fri, 13 Oct 2017 19:39:03 +0000

Very useful! Thanks

By: Kuti

Kuti — Sun, 22 Jun 2014 16:48:15 +0000

Many thanks!

By: Rose

Rose — Wed, 05 Mar 2014 16:14:30 +0000

Thanks SO much! I have been looking everywhere for a way of plotting a “discontinuous” step function as above. How very nice to find one :-)

By: hagen

hagen — Mon, 02 Apr 2012 10:27:57 +0000

What is not so easy is to get the range values of the different parts of the step functions, but the actual y values worked well for me. For example, for step_data.txt try:

rect(x) = abs(x)>0.5 ? a : abs(x)<0.5 ? b : b/2.0
fit rect(x) 'step_data.txt' u 1:2 via a,b
plot 'step_data.txt' u 1:2 w p ls 1, \
     rect(x)               w l ls 2

By: Owen

Owen — Tue, 27 Mar 2012 17:52:54 +0000

Very useful! :)

Is it possible to use these discontinuous functions in ‘fit’- I can’t seem to get it work myself.

By: Sascha

Sascha — Thu, 05 May 2011 20:33:58 +0000

Very helpful indeed, thank you very much!

By: Tony

Tony — Mon, 16 Aug 2010 15:50:38 +0000

Very helpful!!!
Thanks ;)