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Interactive fit of P1D array and HFit
Source code name: "fit_p1d.py"
Programming language: Python
Topic: Data fitting/hfitter
DMelt Version 1. Last modified: 01/09/2016. License: Pro
https://datamelt.org/code/cache/fit_p1d_3070.py
To run this script using the DMelt IDE,
copy the above URL link to the menu [File]→[Read script from URL] of the DMelt IDE.
from java.awt import Font,Color
from jhplot import HPlot,H1D,P1D,HFit
# make main canvas
c1 = HPlot("Canvas",600,400)
c1.visible(1)
c1.setAutoRange()
c1.viewHisto(0); # make sure starts from 0
c1.setGTitle("Make a fit using the FIT PANEL", Color.blue) #put title
c1.setGrid(0,0)
c1.setGrid(1,0)
# make data set
p1 = P1D("My Test 1")
p1.add(1.0,3, 1.0)
p1.add(2.0,2, 1.0)
p1.add(3.0,5, 1.0)
p1.add(4.0,5, 1.0)
p1.add(5.0,7, 2.0)
p1.setErr(1)
# set color blue and transparency level 50%
p1.setErrFillColor(Color.yellow,0.3)
c1.draw(p1)
# fit interactively this histogram
# pass objects and names (for code generation)
a=HFit(c1,p1)
# add a user function if you want to
a.addFunc("User1", "Tooltip", "a*x[0]+b","a,b")
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