From 779266ec72a5c76ee52043ab3ae17479ba6a9788 Mon Sep 17 00:00:00 2001 From: tlatorre Date: Mon, 27 Aug 2018 10:12:17 -0500 Subject: add code to expand the track of a particle using a KL expansion To fit the path of muons and electrons I use the Karhunen-Loeve expansion of a random 2D walk in the polar angle in x and y. This allows you to decompose the path into a sum over sine functions whose coefficients become random variables. The nice thing about fitting the path in this way is that you can capture *most* of the variation in the path using a small number of variables by only summing over the first N terms in the expansion and it is easy to calculate the probability of the coefficients since they are all uncorrelated. --- .gitignore | 1 + 1 file changed, 1 insertion(+) (limited to '.gitignore') diff --git a/.gitignore b/.gitignore index a2926db..8dba335 100644 --- a/.gitignore +++ b/.gitignore @@ -11,3 +11,4 @@ fit test-charge *.zdab *.txt +test-path -- cgit