Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

From |
Christoph Engel <[email protected]> |

To |
[email protected] |

Subject |
Re: st: If variable x contains variable y |

Date |
Sun, 15 Jul 2012 18:17:18 +0200 |

John,

gen dummy = (idno > 173664 & idno < 294053) Actually for that purpose it is better that your variable idno is numeric. Hope that helps Christoph Engel Am 7/15/2012 5:52 PM, schrieb [email protected]:

Hi, Thanks for your help. It's a bit more tricky than that, at least as far as I can tell. I'll try and explain a little more clearly! So, as below, I have household level and individual level identifiers. I essentially want to flag the mother's idno. So something along the lines of gen x=1 if idno=="any value in mother_id" to look like column x below. Whether column x read 1 or the corresponding idno is not important at this stage. And I agree, these probably should be stored as string, it's not my data! idhouseidnomother_idx 1736641 173665 173666 17366773664 173668 294038 2940391 294040 2940411 294042 2940431 29404494041 29404594039 2940461 29404794046 29404894046 294049 294050 29405194043 294052 Thanks for your help! JohnChristoph Engel 15/07/12 4:21 PM>>>John, You will have to define the value of x if y does not fulfil your condition, i.e. if it is not equal to z. Depending on your purposes you might either want it to be a missing value, or some expression of x, say 0. I would therefore start out gen x = . replace x = y if y == z (note the "==" in the if clause) Best Christoph Engel Am 7/15/2012 4:59 PM, schrieb Steve Nakoneshny:John, At first glance, it would seem that -gen x = y if y = z- would serveas a solution. Of course, this assumes that your I'd vars are numerical and not string vars (which they probably should be stored as).Steve Sent via carrier pigeon On 2012-07-15, at 8:52 AM, "[email protected]" wrote:Hello, This is my first time using statalist, I hope I do this allcorrectly!I'm looking to create a variable x which is equal to y, but only ifthe given value for y can be found in another variable, z. These are all id numbers, so say y is a universal id and z is a mother's id, telling you the universal id of the mother in relation to the child.For example: yzx 1.. 2.2 3.3 42. 5.. 6.. 737 8.. 9.. 107. So I'm trying to figure out how to create x. Any help would be muchappreciated.Thanks, John * * 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/

-- _________________________________________________________________ Prof. Dr. Christoph Engel Max-Planck-Institut zur Erforschung von Gemeinschaftsgütern Max Planck Institute for Research on Collective Goods Kurt-Schumacher-Strasse 10 D 53113 Bonn Tel. +49/228/91416-10 Fax +49/228/91416-11 e-mail:[email protected] http://www.coll.mpg.de http://www.coll.mpg.de/engel.html http://ideas.repec.org/e/pen22.html http://papers.ssrn.com/sol3/cf_dev/AbsByAuth.cfm?per_id=251559 _________________________________________________________________ * * 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**:

- Prev by Date:
**Re: st: If variable x contains variable y** - Next by Date:
**Re: st: If variable x contains variable y** - Previous by thread:
**Re: st: If variable x contains variable y** - Next by thread:
**Re: st: If variable x contains variable y** - Index(es):