+ Reply to Thread
Results 1 to 2 of 2

Thread: Multinomial probabilty

  1. #1
    Points: 6, Level: 1
    Level completed: 11%, Points required for next Level: 44

    Posts
    1
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Red face Multinomial probabilty




    Hi,

    Could anyone suggest what test should I apply in the case I have probabilities of 0.
    For example, I have a vector of counts 127,2,1,0 and I want to test if this vector fits one of the following probabilities (for example) p1=1,0,0,0 ; p2=0.75,0.25,0,0; p3=0.5,0.25,0.25,0
    At first I thought using Chi square goodness of fit, however the I can't have probabilities of 0 and adding some small number (to avoid zeros) seem to mess up the results.

    Is there another test or method I could try to determine the original distribution of my counts?

    Thanks!

  2. #2
    Omega Contributor
    Points: 38,253, Level: 100
    Level completed: 0%, Points required for next Level: 0
    hlsmith's Avatar
    Location
    Not Ames, IA
    Posts
    6,989
    Thanks
    397
    Thanked 1,185 Times in 1,146 Posts

    Re: Multinomial probabilty


    Can you tell us a little bit more for what this is for or the origins of data? So their is a vector 1 with n values and other vectors of the same size for which you want to match the best fit.


    I guess my question is where the other vectors came from and what do they represent? Not knowing more about these data limits recommendations.

+ Reply to Thread

           




Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts






Advertise on Talk Stats