st: stdf after nl

[Carlo Mengoli <camengol@tin.it>]

Hello,
after a linear regression estimate it is possible to obtain the 
standard deviation of the forecast with
.predict f, stdf
it means the 95% confidence interval for an additional observation.
Is it possible to obtain an equivalent postestimation value after a 
non-linear estimate, for example after the "nl" command?
With "predictnl ..., ci()" I get only the confidence interval for the 
(central) line of the means. It is a narrower area.
Thank you for your patience.
Carlo Mengoli


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