Stata The Stata listserver
[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

st: -eqprhistogram- revised on SSC

From   "Nick Cox" <>
To   <>
Subject   st: -eqprhistogram- revised on SSC
Date   Fri, 6 Jun 2003 13:23:22 +0100

Thanks to Kit Baum, -eqprhistogram- has been revised
on SSC. This draws equal probability histograms, as
explained in previous postings, or the help file.

The changes:

1. I added some references to the help:

This kind of graph has been discussed by, for example, Breiman (1973,
pp.208-9) and Scott (1992, pp.69-70).  Breiman points out that the
associated error will be approximately a constant multiple of the bar
heights, so long as the bin frequencies are not too small.

Breiman, L. 1973. Statistics: with a view towards applications.
Houghton Mifflin.

Scott, D.W. 1992.  Multivariate density estimation: theory, practice,
visualization.  New York: John Wiley.

I would much appreciate details of any earlier or fuller discussions.

2. Two new options:

-mean- adds a dashed line indicating the mean of the data.

-plot(plot)- provides a way to add other plots to the generated graph;
in particular, you can now superimpose a kernel density estimate.


*   For searches and help try:

© Copyright 1996–2019 StataCorp LLC   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index