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st: new bivariate density estimation and graphics routine
From
Christopher Baum <[email protected]>
To
"[email protected]" <[email protected]>
Subject
st: new bivariate density estimation and graphics routine
Date
Thu, 27 Dec 2012 19:10:56 +0000
. ssc desc bidensity
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package bidensity from http://fmwww.bc.edu/repec/bocode/b
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TITLE
'BIDENSITY': module to produce and graph bivariate density estimates
DESCRIPTION/AUTHOR(S)
bidensity produces bivariate kernel density estimates and graphs
the result using a twoway contourline plot, optionally
overlaying a scatterplot. The default kernel is Epanechnikov;
all of the kernels provided by -kdensity- are also available.
Compared to Baum's -kdens2- (SSC), which was recently enhanced to
produce contourline plots, -bidensity- computes the bivariate
kernel densities much more efficiently through use of Mata, and
provides a choice of kernel estimators. The estimated densities
can be saved in a Stata dataset or accessed as Mata matrices.
KW: density estimation
KW: bivariate density
KW: contourline plots
Requires: Stata version 12.1
Distribution-Date: 20121227
Author: John Luke Gallup, Portland State University
Support: email [email protected]
Author: Christopher F Baum, Boston College
Support: email [email protected]
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