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I have a large project data set ,which includes numeric values like dollar amounts, and non numeric quantities like country codes, purpose codes etc I want to find relationships between the variables. What statistical tools should I research to be able to do that ? Should I always have an hypothesis before or can I find relationships in data in general ? I started looking into principal component analysis..but it seems that wont be very useful for non interval data.. am I right ? Should I look into multivariate regression ? The problem is I don`t even know which field or topic covers such an analysis.? Any pointers to how to begin my research would be appreciated

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    $\begingroup$ This might be better asked at stats.stackexchange.com $\endgroup$
    – Barry Cipra
    Jan 26, 2015 at 12:51
  • $\begingroup$ You really need to be more specific with what you're researching... Finding "relationships" between variables is very context-dependent, so it is hard if not impossible for others to comment on it. What is it about the data that you're interested in? Also, you should expand your question and post it to stats.stackexchange.net. $\endgroup$
    – Stijn
    Jan 26, 2015 at 12:53

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