macro curve fitting

[Jeff Spector-2]

Greetings,
 I would like to create a macro that fits data from a linescan. I know I
can get the XY values and then use the fitting functions. My quick and
dirty way to make macros is to always start with the macro recorder.
However, it seems to no record the Data->addFit from the plot window. If i
run the recorder, draw a line, plot the profile and then hit  Data>>Add
Fit  choose gaussian and hit "ok" the reorder only gives me the following :

makeLine(93, 72, 121, 138);
run("Plot Profile");
Plot.setStyle(1, "blue,#a0a0ff,1.0,Line");

It seems to be recording the drawing of the fit line, but not the action of
the Add Fit button. Is there a way to add this in a macro, or am I better
off just extracting the plot profile values and doing the fits directly on
that data?

Thanks.

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[vbindokas]

this is my FWHM fitting macro:

ti=getTitle();
profile = getProfile();

getPixelSize(unit, pixelWidth, pixelHeight);

x=newArray(profile.length);
y=newArray(profile.length);

   for (i=0; i<profile.length; i++){
       x[i]=i*pixelWidth;
       y[i]=profile[i];
   }
Fit.logResults;
Fit.doFit("Gaussian", x, y);
d=Fit.p(3);
print(ti);
print("FWHM is:", 2.3548*d);


cheers




On 1/26/2021 1:06 PM, Jeff Spector wrote:

> Greetings,
>   I would like to create a macro that fits data from a linescan. I know I
> can get the XY values and then use the fitting functions. My quick and
> dirty way to make macros is to always start with the macro recorder.
> However, it seems to no record the Data->addFit from the plot window. If i
> run the recorder, draw a line, plot the profile and then hit  Data>>Add
> Fit  choose gaussian and hit "ok" the reorder only gives me the following :
>
> makeLine(93, 72, 121, 138);
> run("Plot Profile");
> Plot.setStyle(1, "blue,#a0a0ff,1.0,Line");
>
> It seems to be recording the drawing of the fit line, but not the action of
> the Add Fit button. Is there a way to add this in a macro, or am I better
> off just extracting the plot profile values and doing the fits directly on
> that data?
>
> Thanks.
>
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> ImageJ mailing list: https://urldefense.com/v3/__http://imagej.nih.gov/ij/list.html__;!!OaZRxjSJGsACmqMyc8s!Z0sbqgEAo0Coe3LGxkJtciS0K8D5OGkGzMPdFBl5dhQLq5R7U0kISFdXssnfHP1RAxioTN8$
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