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From |
Maarten Buis <maartenlbuis@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: macro `if' in nonlinear least squares |

Date |
Thu, 2 May 2013 17:34:44 +0200 |

Apperently the local macro `if' was defined previously and contains something like "if <some condition>" to determine for which observations these computations are to be performed. To find that out you should look at where in that code the macro `if' was defined. If it is not defined, it will be empty and thus do nothing (other than confuse you). -- Maarten On Thu, May 2, 2013 at 5:27 PM, Francesca Colantuoni <f.colantuoni9@gmail.com> wrote: > I am programming a nonlinear least square regression, and I am trying > to find the best way to do it based on variuos examples that I found > online. > > In the following code, I have trouble understanding what stata does > with the macro `if' at the end of the generate command. Would anybody > clarify that for me? I could not find an explanation for this use of > "if" in either [P] or [U] manual (or Google). > > // Some temporary variables > tempvar kterm lterm > generate double `kterm' = `delta'*`capital'^(-1*`rho') `if' > generate double `lterm' = (1-`delta')*`labor'^(-1*`rho') `if' > > // Now fill in dependent variable > replace `logout' = `b0' - 1/`rho'*ln(`kterm'+`lterm') `if' > > Best Regards, > Francesca > * > * For searches and help try: > * http://www.stata.com/help.cgi?search > * http://www.stata.com/support/faqs/resources/statalist-faq/ > * http://www.ats.ucla.edu/stat/stata/ -- --------------------------------- Maarten L. Buis WZB Reichpietschufer 50 10785 Berlin Germany http://www.maartenbuis.nl --------------------------------- * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/faqs/resources/statalist-faq/ * http://www.ats.ucla.edu/stat/stata/

**References**:**st: macro `if' in nonlinear least squares***From:*Francesca Colantuoni <f.colantuoni9@gmail.com>

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