Chi-Square degrees of freedom

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Jules19
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Chi-Square degrees of freedom

Post by Jules19 » Thu Nov 19, 2009 3:22 am

When using the chi-square test when dealing with phenotypic frequencies, how do you figure out the number of degrees of freedom?

Is it number of possible phenotypes minus one, or number of possible genotypes minus one?

Jules

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jwalin
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Post by jwalin » Thu Nov 19, 2009 12:50 pm

you just answered your own question
what i am interested is in why?
it isn't what you do that matters but it is how you do it

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JackBean
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Post by JackBean » Thu Nov 19, 2009 1:57 pm

he asked "is it A OR is it B?" Is that answer for you?

BTW if dealing with phenotypic frequencies, shouldn't you use phenotypes?
http://www.biolib.cz/en/main/

Cis or trans? That's what matters.

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jwalin
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Post by jwalin » Thu Nov 19, 2009 4:30 pm

sorry
missed the or....
a bad habit and a mistake that i repeated twice. won't do it again.
it is phenotype minus one
it isn't what you do that matters but it is how you do it

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