Is it possible to use unbinned fit to fit background to data?

Hi, rooters! Now I’am able to perform binned fit of signal and background histograms to data histogram. My new goal is to fit signal and background to data using unbinned fit. What is the proper way to do it? On the internet there is only unbinned fits with function.

Thanks in regards

There are many examples of how to perform unbinned fits. You need to model your distribution with a function. The function can be binned (an histogram, see RoHistPdf) or described as kernel density estimator (see RooKeysPdf) or described in a mathematical form.


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