> After applying the NLS for a model like y=exp(a*x), and I get > a result showing the summary as: > Estimate Std. Error t value Pr(>|t|) > 2.6720 1.4758 1.811 0.3212 > > My question is what this t-statistics tests? And what's the > meaning of Pr? t is (estimate/std.err) and can be used to test the null that the coefficient is 0. Pr is the corresponding p-value; the fact that it says "> |t|" indicates the number of tails.
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