How do you calculate the coefficient correlation of a curve?
You need to find a linear function between your two sets of data,or one that looks so.Example, suppose you two variables are (p as independant variable and q as dependant variable)then you could plot (p,log q) if this gives a reasonably straight line then your relationship could be nlog q = p ,and so you calculate the slope n.when you have n then you have found a straight line relationship which is q = p^n.you could then try the Pearson on the straight line values.Then if that fails try q = 1/p if you get a straight line find it’s slope (n) as before then you have q= n/p. In all likelihood in biology you have a relationship of the type q= p^n but remember the slope could be positive or negative or fractional.You need to think hard at this point.Hope it helps you!
