Opened 5 weeks ago

Last modified 5 weeks ago

#3036 new defect

Add help for the formula structure input for non-linear regression

Reported by: gkronber Owned by:
Priority: medium Milestone: HeuristicLab 3.3.17
Component: Algorithms.DataAnalysis Version:
Keywords: Cc:

Description

The information should include a list of all allowed functions, the grammar as well as usage examples.

Change History (1)

comment:1 Changed 5 weeks ago by gkronber

Here is the list of operators and functions that are currently (3.3.16) supported by auto diff:

+
/
*
-
ABS
EXP
LOG
SQR
SQRT
CUBE
CUBEROOT
SIN
COS
TAN
TANH
NORM
ERF
AQ 

Power is not supported. There are two work-arounds in 3.3.16:

  1. use the pow(x,y) = exp(y log(x)), to optimize both x and y
  2. use a combination of sqr and cube for fixed integer powers
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