Live Fitting Plugin with userCalc functionality

[abrewe]

LiveFitter_EPICSUserCalc.java

ImageJ plugin for displaying a live fit in a profile plot. Fit Parameters and Fit Equation are displayed above the plot.
Includes the option to send and display fit parameters into a userCalc.
Fits any built-in ImageJ fit and a custom Slit Function:

$f(x) = a + bx + e/2 * erf( (x - c + d/2) / (f*\sqrt{2}) ) – e/2 * erf( (x - c - d/2) / (f*\sqrt{2}) )$

a+b*x : linear background
c: center of slit function
d: Full width at half max of slit
e: full height of the slit function
f (sigma): width of the erf, blurriness
of the edge (f limited from 0-30 to get better results from custom ImageJ fitting)

userCalc functionality: To send the fit parameters to a userCalc, enter the userCalc prefix
in the userCalc field.

Displays equation (as much as will fit) and fit parameters in the userCalc.

Limitations:

• Only works with one fit at a time
• For longer equations, plot may need to be resized to view full equation
• Similarly, longer equations may not be fully displayed in userCalc
• Limitations on f parameter for slit function fitting means there may be cases where fit is not great

[antoninomiceli]

FYI, this more or less includes all the functionality of Gaussian_Profiler.java

[abrewe]

LiveFittingPluginVideo.mp4

[antoninomiceli]

This plugin has been extensively used/degugged at 1-ID.

[cpchuang]

Strong support to include this into master branch... very useful tool and can save significant amount of time for alignment.