Statalist The Stata Listserver

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

st: Categorical variable codings

From   "Silwood, Christopher J" <>
To   <>
Subject   st: Categorical variable codings
Date   Thu, 19 Oct 2006 12:38:56 +0100

I am trying various regression analyses on data obtained from the
study of 6 different cooking oils, control and 4 different material
treatments, all samples being sampled at 30 min, 60 min and 90 min
heating. I am wondering what a suitable set of categorical variable
codes to use for comparing, e.g. material/time or oil/material/time,
i.e. 5 X 3 or 6 X 5 X 3 at all levels and interactions, assuming with
the latter that "oil" can be included as an independent variable.


This e-mail message may be confidential and is intended only for the use of the individual(s) to whom it is addressed.  It may contain information which is or may be confidential, non-public or legally privileged. Please do not disseminate or distribute this message other than to its intended recipient without permission of the author. You should not copy it or use it for any purpose nor disclose its contents to any other person. If you have received this message in error, please notify me by email immediately and delete the original message and all copies in your computer systems.

*   For searches and help try:

© Copyright 1996–2021 StataCorp LLC   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index