Message-ID: <CAF78DZ3uXdXsceejpYVZe2N_NerTFudpM0SGZewLkStcVumEFA@mail.gmail.com>
Date: 2012-10-08T13:40:44Z
From: Francesco
Subject: weighted cumulative distribution with ggplot2
Dear all,
I am trying to draw a weighted cumulative distribution (as defined
here http://rss.acs.unt.edu/Rdoc/library/spatstat/html/ewcdf.html)
with ggplot2
however the syntax
temp<-qplot(X,weight=weight,data=data,stat = "ecdf", geom =
"step",colour=factor(year))
seems not to produce exactly the right figure (the values seems higher
at some points)... I am wrong in the weight definition?
The data is like the following
X Weight Year
0 2 2001
0 1 2001
1 5 2001
2 1 2001
2 3 2001
2 2 2002
3.. etc
Any ideas ?
Many thanks in advance