Statalist


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

st: How to estimate exponential decay parameter?


From   "Song" <raravise@gmail.com>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: How to estimate exponential decay parameter?
Date   Sun, 23 Mar 2008 13:08:08 -0500

Hello,

My data shows a exponential decay pattern and I want to estimate exponential decay parameter. How can I estimate 'd' in the following model using Stata?

Sales(at t) = M*exp(-d*t)

M: initial sales
t: time
d: decay parameter

Thank you for your help.
Reo.
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/




© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index