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From |
Nick Cox <n.j.cox@durham.ac.uk> |

To |
"'statalist@hsphsun2.harvard.edu'" <statalist@hsphsun2.harvard.edu> |

Subject |
st: RE: new explanatory variable in a loop |

Date |
Tue, 7 Dec 2010 18:47:07 +0000 |

Yes, you _can_ do that. The central line would become quietly regress liq `X' d`i' if isin2==`i' However, if each dummy is 1 if and only if the identifier is that named, then the dummy is identically 1 and no purpose is served thereby. Thus if -d3- is 1 if and only if -isin2- is 3, then your variable is just a constant. Nick n.j.cox@durham.ac.uk Rodrigo Briceño Hello again Stata listers. I am running several regressions (stata 9.2, windows XP) that contains a set of dummies (each dummy is defined as a "d" plus the identification number of the bond considered. So for id3, the dummy is d3, and so on. I made the following loop (this is a shortened version; the original include tests and exporting coefficients using estimates store and estout): loc X = "sap liqmk m2-m12 mes pprom" local isin "3 4 247 1 5 6" foreach i of local isin { quietly regress liq `X' if isin2==`i' } My question to the list is: can I include something like d`i' as a new explanatory variable? What I need is that each regression include its corresponding dummy, so I can do the process automatically instead of typing individual commands: regress liq sap liqmk m2-m12 mes pprom d3 if isin2==3 regress liq sap liqmk m2-m12 mes pprom d4 if isin2==4 THanks -- Rodrigo Briceño Economist rjbriceno@gmail.com MSN: jbric98@hotmail.com SKYPE: rbriceno1087 * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/ * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

**Follow-Ups**:**Re: st: RE: new explanatory variable in a loop***From:*Rodrigo Briceño <rjbriceno@gmail.com>

**References**:**st: new explanatory variable in a loop***From:*Rodrigo Briceño <rjbriceno@gmail.com>

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