[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

RE: st: RE: bihistogram

From   "Rajesh Tharyan" <>
To   <>
Subject   RE: st: RE: bihistogram
Date   Wed, 27 Aug 2008 14:36:37 +0100


Hi sorry about the post with no link. Not sure what happened. Some
explanation on when this can be useful.


-----Original Message-----
[] On Behalf Of Nick Cox
Sent: 27 August 2008 11:14
Subject: RE: st: RE: bihistogram

Conventionally population pyramids are side-by-side, bihistograms
(whether named as such or not) top-and-bottom, but it's the same basic

The popularity and familiarity of population pyramids sometimes obscure
one simple question: how effective are they? In most cases the numbers
of males and females are within a few percent of each other, and so what
you see is an approximate pair of mirror images. Showing the sex ratio
directly as a function of age would seem to be better at showing more
subtle details, e.g. any cross-over point when sex ratio was 1. 


Sergiy Radyakin

What is the difference between bihistogram and a population pyramid?
Is it another way of drawing (horizontal vs vertical)? Or is it just
another term?

If so, this might be helpful:

and this too:
net search pyramid

*   For searches and help try:

*   For searches and help try:

© Copyright 1996–2015 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index