Talk:Landau distribution

From Wikipedia, the free encyclopedia
Jump to: navigation, search
WikiProject Statistics (Rated Start-class, Low-importance)
WikiProject icon

This article is within the scope of the WikiProject Statistics, a collaborative effort to improve the coverage of statistics on Wikipedia. If you would like to participate, please visit the project page or join the discussion.

Start-Class article Start  This article has been rated as Start-Class on the quality scale.
 Low  This article has been rated as Low-importance on the importance scale.

It should be noted that the Landau distribution has no free parameters! Thus, the curve in the figure is wrong. There is no Landau distribution with a most probable value of 2 and a of 1. Actually the most probable value is (ROOT TMath::Landau()) around 0.222.
Just by scaling and shifting one can introduce artificially a most probable value and a width

The physics of high energy ionized particles going through a thin piece of material[edit]

Deserves its own page too, and link back and forth. (talk) 21:09, 16 August 2011 (UTC)


Could someone who knows add a section on why this is the distribution of particles' energy loss travelling through a thin medium?

Approximate expression wrong?[edit]

Is there a mistake in the approximation given? (which is used for the figure).

This has a peak at x=-0.001 p=0.242. Whereas the integral (evaluated with scipy)

give a peak at x=-0.223, p=0.181 which agrees with GSL:

#!/usr/bin/env python
import numpy
from matplotlib import pyplot
import pygsl.rng
x = numpy.linspace(-4, 10, 1000)
pyplot.plot(x, pygsl.rng.landau_pdf(x)) (talk) 14:15, 13 January 2015 (UTC)