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From |
Namrata Chindarkar <namrata.chindarkar@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: Computing proportions within generated reference groups |

Date |
Tue, 30 Aug 2011 11:47:34 -0400 |

Thanks Nick! Will try this and revert if I continue to face problems. Best, Namrata On Tue, Aug 30, 2011 at 11:41 AM, Nick Cox <njcoxstata@gmail.com> wrote: > Let's suppose that key individuals are identified by an indicator > variable -key- and also that no group has more than one such > individual. Then it sounds like > > bysort group (key income): gen cumul = sum(income < income[_N]) if key[_N] > by group : replace cumul = 1 - cumul/(_N - 1) > > Nick > > On Tue, Aug 30, 2011 at 4:18 PM, Namrata Chindarkar > <namrata.chindarkar@gmail.com> wrote: >> Thank you for your responses. >> >> A reference group is generated by year, country, age category, and >> education category >> >> egen group = group(year country age_cat edu_cat) >> >> Each individual is an observation in one of the reference groups. No >> individual belongs to more than one reference group. >> >> Namrata >> >> On Tue, Aug 30, 2011 at 11:11 AM, Nick Cox <njcoxstata@gmail.com> wrote: >>> No; it is most unlikely that you need to write a Stata program to do this. >>> >>> It is an application of -by:- and -sum()- and likely to be about two >>> lines of code. >>> >>> To suggest good code I would need to know more about how that >>> individual is defined. >>> >>> Nick >>> >>> On Tue, Aug 30, 2011 at 3:54 PM, Namrata Chindarkar >>> <namrata.chindarkar@gmail.com> wrote: >>> >>>> I have created reference groups in my dataset using -egen- and now >>>> want to compute proportions within those groups for certain variables. >>>> For instance, for the income variable, I want to compute the >>>> proportion of individuals that have income greater than income of >>>> individual "i" in each reference group. As an example if group1 has 5 >>>> individuals with incomes 30, 20, 10, 60, and 70 respectively, I want >>>> to be able to get values 0.4, 0.6, 0.8, 0.2, and 0 respectively. >>>> Any suggestions on how to write a STATA program to compute this? >>> >>> * >>> * 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/ >> > > * > * 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/

**References**:**st: Computing proportions within generated reference groups***From:*Namrata Chindarkar <namrata.chindarkar@gmail.com>

**Re: st: Computing proportions within generated reference groups***From:*Nick Cox <njcoxstata@gmail.com>

**Re: st: Computing proportions within generated reference groups***From:*Namrata Chindarkar <namrata.chindarkar@gmail.com>

**Re: st: Computing proportions within generated reference groups***From:*Nick Cox <njcoxstata@gmail.com>

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