Login

Search the forums now!

Welcome, Guest. Please login or register.

April 29, 2024, 08:02:17 am
Pages: [1]   Go Down

Author Topic: Transformations  (Read 1180 times)  Share 

0 Members and 1 Guest are viewing this topic.

hifer

  • Victorian
  • Trendsetter
  • **
  • Posts: 110
  • Respect: 0
Transformations
« on: November 03, 2007, 02:57:36 pm »
0
How do u see if the transformation is a better fit? r or r^2?
Textbook says r but some other sources say r^2...
Logged

maxleng

  • Victorian
  • Forum Obsessive
  • ***
  • Posts: 285
  • Respect: 0
Transformations
« Reply #1 on: November 03, 2007, 03:00:03 pm »
0
our text book says r^2
Logged

gulamali

  • Victorian
  • Forum Regular
  • **
  • Posts: 76
  • Respect: 0
Re: Transformations
« Reply #2 on: November 03, 2007, 04:24:15 pm »
0
Quote from: "hifer"
How do u see if the transformation is a better fit? r or r^2?
Textbook says r but some other sources say r^2...


r^2...and you could always plot a residual plot, and check if it has less curvature, and a more random distribution of points both above and below =]
Logged

joechan521

  • Victorian
  • Forum Obsessive
  • ***
  • Posts: 357
  • Respect: +1
Transformations
« Reply #3 on: November 03, 2007, 04:44:46 pm »
0
r and r^2 are related

higher r = higher r^2 = better fit
Logged
06 method47 chinese 2nd language advanced39
07 english39 specailist44 accounting44 further48 psychology35
07 ENTER 99.15
Pages: [1]   Go Up