[R] Question about NLS model
S Ellison
S.Ellison at LGCGroup.com
Thu Feb 7 16:48:03 CET 2013
> 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.
S
*******************************************************************
This email and any attachments are confidential. Any use...{{dropped:8}}
More information about the R-help
mailing list