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  1. Dason

    IBM SPSS Statistics Viewer Error

    I'm not sure if I completely understand you but no... If the script is pointing to an exact location then you can't move that file unless you modify the script to point to the new location.
  2. Dason

    proc plm

    DOWN WITH SAS
  3. Dason

    Multiple layers of probability

    A regular Markov chain would work just fine and your situation is a common case. Basically you just add a case for "lost" and that case has a probability of 1 of transitioning into "lost" so essentially once it's there it's stuck.
  4. Dason

    Multiple layers of probability

    What you have is a Markov chain. You have all the necessary info to define your transition matrix. Finding the probability of starting at position London and ending at position X is what the row corresponding to London will tell you after taking the matrix to the 26th power. Luckily this is...
  5. Dason

    Two sample t test

    Probably. Looks like it copy/posted a reply to make it seem more natural.
  6. Dason

    Help me solve this problem!

  7. Dason

    can Multivariate normality avoid overfitting scenarios?

    I still don't think you're understanding that it sounds like OP is under the assumption that all variables need to be multivariate normal (including the predictors). It's just the error term that has a normal distribution assumption and that's only if you're doing tests.
  8. Dason

    can Multivariate normality avoid overfitting scenarios?

    They can be used. Also just reducing the number of variables in the model helps. But honestly it just sounds like op thinks normality is required for certain things when it isn't.
  9. Dason

    can Multivariate normality avoid overfitting scenarios?

    The only assumption of normality is that the error term is normally distributed. You do not need the predictors to be normally distributed.
  10. Dason

    Help me solve this problem!

    Without more info - no. You could get a range of possible values but not an exact solution.
  11. Dason

    Missing data

    Didn't even matter if you didn't think anybody else would be interested. It's just common courtesy. You're asking hlsmith for help - don't make them track things down that you randomly posted to a different thread.
  12. Dason

    Missing data

    Come on Noetsi - at the very least provide a link: http://www.talkstats.com/threads/file-for-hlsmith.77590/ Anybody that doesn't have access to the lounge won't be able to access that thread.
  13. Dason

    Missing data

    Did you really?
  14. Dason

    Scaling chance weights

    I'm just saying work with the probabilities directly. Heck the request you have is even framed in terms of probabilities. It sounds like all you really want to do is replace the extremes with 1/300. From there if you're working with the probabilities you could just scale the remaining...
  15. Dason

    Scaling chance weights

    It's there a reason you're using "chance weight" as your vocabulary instead of working with the probabilities directly? It seems like that is really the source of your problem.
  16. Dason

    SPSS free trial on the same device

    I'm going to lock and close this thread.
  17. Dason

    Type II error textbook question

    I think you're right. I'm guessing whoever wrote the answer made the same mistake I did and just for some reason thought they read calculate the power or whatever. But I can't see anything wrong with your answer.
  18. Dason

    Type II error textbook question

    Because you calculated the probability of the statistic falling in the acceptance region. But you want to calculate the probability of rejecting so you really want the probability of being outside the acceptance region.
  19. Dason

    Discrete normal distributions

    Ultimately I think the you'll need to just choose a width (or in this case just total number of bins) and from there it's easy to get the theoretical height / number of marbles for each bin. Essentially you're looking to animate something similar to a "Galton board" right?
  20. Dason

    Reconcile differences in sample size calculation for two proportions?

    I don't know. I don't typically like using these kinds of sample size calculators. Instead I just simulate and use that to estimate power over a range of sample sizes. That way I know the sample size I get will be accurate for the actual analysis I'll be doing.