Recent content by gianmarco

  1. gianmarco

    Chi square effect size - why to use the Crammer's V and not only Phi

    Hello, i do not totally understand your question, but I will try to answer. Phi does not reach its upper ceiling (1) for tables larger than 2x2. In this instance, better to use Cramer's V (which is also called Cramer's phi in some books). Hope this helps Best
  2. gianmarco

    Chi square test

    Hello, i cant remember but there should be an option in SPSS, either something to tick or a button to press (that would lead you to another menu). Apologies if I cant be more specific, but it's a while that i dont use SPSS (which I do not particularly like by the way). Gm
  3. gianmarco

    Chi square test

    Just a supplemetary note: you may want to inspect the (adjusted) standardized residuals to find out which cell significantly contribute to the departure from independence. Best Gm
  4. gianmarco

    Chi squared test assumptions not met

    Hello, the issue is tacked e.g. in Spatz's book (LINK) (pages 316 and following). When saple size (i.e., table's grand total) is large, small expeted frequenciesmight not pose a problem. Also, I think (but not totally sure) that Fisher's exact test might be carried out in your context. What is...
  5. gianmarco

    Long live SAS

    ouch...I wasnt kidding.....
  6. gianmarco

    Long live SAS

    the elephant is dead. Sorry
  7. gianmarco

    Long live SAS

    by the way, I want to run Excel on my Commodore64: That was the way I learned programming....back in 1986...I was 10 yr old.
  8. gianmarco

    Long live SAS

    Who's "he"?
  9. gianmarco

    Long live SAS

    To be honest, I'd like to be able to use Excel within R...sort of letting R tapping the statistical facilities of Excel.
  10. gianmarco

    Long live SAS

    I have switched back to Excel, which is the best when it comes to statistics
  11. gianmarco

    Chi square test to investigate further

    I provided you with a reply HERE. Not about chi-square tough, but CA is in some way related to chi-square.
  12. gianmarco

    R help

    Hello, from an exploratory point of view, you could use simple Correspondence Analysis in this case. I happened to come across something like that in relation to the analysis of newspaper headlines. You would need to reshape (or recode) your data a bit. For instance, you may want to build a...
  13. gianmarco

    All Chi sq residuals significant

    @hlsmith, thanks for the question, which is not so easy to asnwer in few words. CA is a dimesionality reduction technique used for cross-tabulation. Essentially, it allows you to display the deviation from independence by displaying the rows and columns of a cross-tab in a low-dimensional...
  14. gianmarco

    All Chi sq residuals significant

    That means that all the cells significantly contribute to the departure from the Null Hypothesis (in either direction; i.e., either featuring counts significantly lower or higher than expected). Just out of curiosity: how large is your table and what is your table's grand total? If you want to...
  15. gianmarco

    Is Chi square the appropriate test in this scenario?

    Hello, do you have spatial information about those burrows (i.e., geographic coordinates)? Just wanted to provide you with another perspective: the question could be framed "spatially"; in other words, one could wonder if satellite burrows tend to be closer in space to occupied burrows than to...