Recent Discussions in Crystal Ball Users Group (CBUG)


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  1. Re: Conditional Probability
    This the approach I was considering. I was just concerned that I would end up with a poor fit unless I run a large set of data. I will give it a try and see...
    - Sun, 16 Nov 2008 17:14:46 GMT
  2. Re: Conditional Probability
    Hi, Jimmy, Try this: Run your model, including the correlations using 20,000 or more iterations. Extract trial values for F, X, Y, Z. Sort the data on X....
    - Sun, 16 Nov 2008 15:12:36 GMT
  3. Re: Conditional Probability
    This illustrates the problem of specifying a model in terms of correlations. A correlation is a relationship among the distributions of the variables. When...
    - Sun, 16 Nov 2008 14:43:19 GMT
  4. Re: Conditional Probability
    The distribution are continious gamma functions. I do not get what you mean by "If X and Y are continuous, then the probability of their assuming particular...
    - Sun, 16 Nov 2008 02:00:34 GMT
  5. Re: Conditional Probability
    Hi, Jimmy, If X and Y are continuous, then the probability of their assuming particular fixed values is of course 0. If X and Y are discrete, then you can run...
    - Sat, 15 Nov 2008 14:51:48 GMT
  6. Conditional Probability
    Hello all, I'm trying to model conditional proabailities in CB. Quick desscribtion of my problem. I have three distributions as inputs (X, Y, Z) and I run my...
    - Fri, 14 Nov 2008 22:41:40 GMT
  7. Re: Using Yes-No Distribution combined with another distribution
    Thank you Huybert. That is exactly what I did, even though I may not have explained myself very well. Todd. ... variation ... in one ... distribution ... ...
    - Fri, 07 Nov 2008 17:37:54 GMT
  8. Re: Using Yes-No Distribution combined with another distribution
    Hi Debra/Todd, From reading your email, I think you need a way to incorporate the variation in the probabilities from year to year is to have one cell in your ...
    - Fri, 07 Nov 2008 13:40:32 GMT
  9. Re: Using Yes-No Distribution combined with another distribution
    Huybert, you have hit on my problem, and even tried to address the second part of forecast model. I will explain here, and then again, below among your...
    - Fri, 07 Nov 2008 02:18:33 GMT
  10. Re: Using Yes-No Distribution combined with another distribution
    Hi Debra/Todd, Great questions! This is a very common area where people make mistakes. While it is not 100% clear from your email how exactly you did it, I...
    - Thu, 06 Nov 2008 20:29:29 GMT
  11. Re: Anlysis on Income Statement!
    Dear Huybert, ? It is pleasure to address you. This is The file attached. I want to check percentile and certainty on this model. ? If you have time then...
    - Thu, 06 Nov 2008 13:08:35 GMT
  12. Using Yes-No Distribution combined with another distribution
    I'm a new user to Crystal Ball. By training I earned degrees in accounting and information systems back in the mid 80's and my statistical knowledge is just...
    - Thu, 06 Nov 2008 13:08:02 GMT
  13. Re: Anlysis on Income Statement!
    Huybert,   Thanks for your time and for your clarifications!. I think it is also wise to relate all of them with NPV and IRR! What is your opinion?   Second...
    - Wed, 05 Nov 2008 15:32:38 GMT
  14. Re: Anlysis on Income Statement!
    Hi John, Thanks for the clarifying question! What I was trying to point out is that you should NOT model the yearly revenue (and costs) as follows: ....
    - Wed, 05 Nov 2008 02:09:39 GMT
  15. Re: Problem with simulation
    That's a good (and very common) question! The quick answer is "yes".. For a more comprehensive answer I would refer you two resources: 1. A web-seminar...
    - Wed, 05 Nov 2008 00:43:16 GMT