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From |
Jeph Herrin <stata@spandrel.net> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: Terminating a loop when a certain value is reached. |

Date |
Mon, 01 Apr 2013 17:04:52 -0400 |

I still don't see an index on generationnum. On 4/1/2013 10:03 AM, Stephen Cranney wrote:

Apologies for the lack of detail. I forgot to add the `i' but it still isn't working (it's running, it just isn't doing what I want it to, which is terminate the loop at a certain point). Below is the relevant portion of my code. As you can see, I have a large number so that it just keeps running indefinitely (which is why I want to be able to make a break point trigger). Once a "birth" is created a series of mirror observations is created for the offspring, and its generationnum value is one greater than its parent. What I'm trying to do is run this until generationnum equals a certain number (decided at the beginning of the ado file), but I don't see why the continue, break code at the end performs this function. forvalues i = 1/999999999999999999999999 { if births[`i'] == 1 { expand 2, gen(newvar`i') egen Xnewvar= rowtotal (newvar*) drop if Xnewvar>1 drop if Xnewvar== 0 & generationnum!= 1 drop Xnewvar replace generationnum=generationnum[`i']+1 if newvar`i'==1 if generationnum==2 { continue, break } .... Thanks again, Stephen On Mon, Apr 1, 2013 at 8:30 AM, Nick Cox <njcoxstata@gmail.com> wrote:Not much detail here. One possibility is that you are forgetting that if generationnum == 2 can only mean if generationnum[1] == 2 Nick On 1 Apr 2013, at 13:03, Stephen Cranney <scranney@sas.upenn.edu> wrote:Hi all, I'm trying to figure out how to break out of a loop once a variable is changed to a certain value. In each iteration, the value is modified according to the inputs within the loop. I've tried to use an "if" command: if generationnum==2 { continue, break } but it's still not terminating the loop. Does anybody know of a command to terminate a loop once a specified calculated number is reached?* * 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/

* * 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: Terminating a loop when a certain value is reached.***From:*Stephen Cranney <scranney@sas.upenn.edu>

**Re: st: Terminating a loop when a certain value is reached.***From:*Nick Cox <njcoxstata@gmail.com>

**Re: st: Terminating a loop when a certain value is reached.***From:*Stephen Cranney <scranney@sas.upenn.edu>

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