The Math Forum

Search All of the Math Forum:

Views expressed in these public forums are not endorsed by NCTM or The Math Forum.

Math Forum » Discussions » sci.math.* » sci.stat.math

Notice: We are no longer accepting new posts, but the forums will continue to be readable.

Topic: log normal?
Replies: 14   Last Post: Jan 1, 2013 6:17 AM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]
Luis A. Afonso

Posts: 4,758
From: LIsbon (Portugal)
Registered: 2/16/05
Re: log normal?
Posted: Dec 29, 2012 3:42 PM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

Since 1958 (Box-Muller), 50 years ago, people gave up to simulate normal deviations by adding uniform r.v.. This is how much Richard Ulrich is out-of-date. Meanwhile he persists to misdirect people in Statistics regardless our corrective /advisory remarks. - 41k

Luis A. Afonso

Re: log normal? Posted: Dec 27, 2012 2:11 PM
In detail with the algebra. Normal N comes from U1 + U2 + ... + Uk . Log normal -log(N) comes from log(U1) + log(U2) + ... + Uk whichh implies N comes from U1 * U2 * ... *Uk. There may be differing weights for the different Uniform measures being added, but none of them overly influence it. -- Rich Ulrich

Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© The Math Forum at NCTM 1994-2018. All Rights Reserved.