chi square

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    Poisson distribution - goodness of fit

    I want to test goodness of fit for poisson distribution for a very large data set (~millions of records). Can anybody suggest a method? All the methods that are available are for small data sets.
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    Is Chi Square the right test to use?

    Dear all, I am having a bit of trouble figuring out which test to perform in the following case: In my eye-tracking study participants are viewing short video clips of people's faces and I count the number of times each of five face regions are fixated by each participant. I have one...
  3. A

    Is my variable count or measurement and what statistical model would be best?

    I am trying to assess the fine-scale spatial distribution of tadpoles along a depth gradient in relation to abiotic and biotic factors -- and am having great difficulty in determining the best statistical test (Chi square VS ANOVA) to use BECAUSE I cannot determine what kind of data I have...
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    Fitting distribution - Chi Square Test

    Hi, I'm need to test some data for my masterthesis. I'm a newbie to statistics, so please forgive any stupid errors I may have done. I use R for all calculations. I have set of 900000 discrete data points in the range from 1 to 600. I wanna fit a distribution to that data set. I think it is a...