(This completes my previous post)
However there's another possible scenario: we have two indipendent variables which nonetheless co-vary. For instance the editor progressively reduced the heigths to save money, and at the same time he progressively changed the color from blue to red. Now ordering by height also orders by colour, which is unexpected, and this suggests the newfound ordering actually reflects an underlying order in the books. I call it Mauro's bookshelf, because I happen to have an old collection of periodicals which just show that pattern
So my question is: what are @LisaFaginDavis's, @npcompl33t's and @quimqu's studies telling us? Are they finding a "Stolfi's bookshelf" or a "Mauro's bookshelf"? I guess demonstrating the condition of indipendence of the variables is quite important, am I right?
However there's another possible scenario: we have two indipendent variables which nonetheless co-vary. For instance the editor progressively reduced the heigths to save money, and at the same time he progressively changed the color from blue to red. Now ordering by height also orders by colour, which is unexpected, and this suggests the newfound ordering actually reflects an underlying order in the books. I call it Mauro's bookshelf, because I happen to have an old collection of periodicals which just show that pattern
So my question is: what are @LisaFaginDavis's, @npcompl33t's and @quimqu's studies telling us? Are they finding a "Stolfi's bookshelf" or a "Mauro's bookshelf"? I guess demonstrating the condition of indipendence of the variables is quite important, am I right?
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