Curve fitting software

  • Thread starter Ledsnyder
  • Start date
  • #1
26
0
Is there a software(preferably free) that can fit data into a 4 parameter equation?

like the generalised logistic function
 

Answers and Replies

  • #2
221
4
TableCurve is great for the type of fitting you need, but it's not free... This is a good site where one can select operating system, rating etc. and look for curve fitting packages that are either free or shareware. There is a wide selection, so I am confident you will in high likelihood find what you need for free;

http://download.cnet.com/
 
  • #4
1,065
53
free? you can do it in python using the scipy module (scipy.optimize)...google "scipy curve fit", you should even find examples.
 
  • #5
Good source of information will span over many many years. Recently, I wanted to obtain a curve fitting equation from the given graph image / published graph. I felt so powerless to do so. This CurveFit Tracer may be helpful to some of you.
 
  • #6
Me thinks that maybe 'CurveFit Tracer' could be used to turn vacuum tube operating curves into useable mathematical equations! Has anybody tried this?
 

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