curvefit2

How to download and try this example

Usage: pl -gif curvefit2.htm

Demonstrates proc curvefit generating an interpolated curve.


#proc getdata
  data:
  0.0 0.0
  1.0 1.0
  2.0 4.0
  1.0 2.0
  0.0 1.0
  1.0 0.0
  2.0 1.0
  1.0 2.0
  2.0 2.0
  3.0 0.0

#proc areadef
  rectangle: 1 1 4 4 
  xrange: -2 5
  yrange: -2 5
  frame: yes
  xaxis.stubs: inc
  yaxis.stubs: inc

#proc lineplot
  xfield: 1
  yfield: 2
  linedetails: color=gray(0.8) width=0.5


#proc curvefit
  curvetype: interpolated
  xfield: 1
  yfield: 2
  linedetails: color=red width=0.5
//  statsonly: yes
//  showresults: yes