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From |
Robson Glasscock <glasscockrc@vcu.edu> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: Change variable |

Date |
Thu, 15 Sep 2011 08:06:48 -0400 |

Hi Ay, No need for an apology. This is a m:1 merge using household(id1) and child(id2). Sort File 1 on household and child. Save it. Sort File 2 on household. Save it. Go into file_1 and type: merge m:1 household child using File_2.dta Note that it looks to me from the data you provided that household 2 has child 4 and child 3 in File 1, but File 2 only has child 1. Also, household 3 in File 1 has child 5, but household 3 in File 2 has child 2. These will show up as observations where _merge != 3 after you merge the files. best, Robson Glasscock On Thu, Sep 15, 2011 at 6:02 AM, Ay <yuniphone@yahoo.co.id> wrote: > Dear Robson, > > My apologize about my unclear question. > > I try to list the variables and data in rows rather than in colomn. > > File 1 > Household(id1)-> > 1, 1, 1, 2, 2, 2, 3, ... > > Child(id2)-> > 2, 2, 3, 4, 3, 3, 5, ... > > Educlevel-> > 2, 1, 1, 2, 2, 1, 1, ... > > X3(schooltype)-> > a, b, a, b, a, a, b, ... > > X4(repetition) > 2, 2, 2, 2, 2, 2, 2, ... > > Educlevel in strings. > Educlevel=1 is primary school. > Educlevel=2 is secondary level. > A child may have secondary level and thus have records for his primary level along with other variables in file1. > > > File 2 > Household(id1)-> > 1, 2, 3, ... > > Child(id2)-> > 3, 1, 2, ... > > X3(ethnicity) > 1, 3, 2, ... > > X4(livings)-> > 1, 2, 2, ... > > In file 2 only single obs. > > I hope this is clearer. > > Thank you. > > Regards, > > Yun > > > On 11 Sep 2011, at 01:53, Robson Glasscock <glasscockrc@vcu.edu> wrote: > >> So File 1 is a panel data set that records each individual's >> educational level over time? If that is the case, and if File 2 is >> also panel data, then a 1:1 merge based on x1(unique id) and x3(time >> period) could be done. >> >> If File 2 is not panel data, then you're looking at a m:1 merge based >> on x1(unique id). >> >> If this doesn't solve the problem, I think you should include an >> example of the observations in each of your files on your next post. >> I'm still struggling a bit to picture the contents of your files. >> >> On Sat, Sep 10, 2011 at 9:20 AM, Ay <yuniphone@yahoo.co.id> wrote: >>> Dear Robson, >>> >>> Thank you for replying. >>> >>> Actually, >>> File 1: >>> x1 (unique id) >>> x2 (educational level) >>> >>> File 2 >>> x1 (unique id) >>> >>> >>> In file 2, x1 & x2 together are unique id. All of the variables are in strings. >>> >>> I could not merge file1 and file 2 since x2 is the educational level in which an individual would have more than 1 level/type. >>> >>> Thank you, >>> >>> Yun >>> >>> >>> >>> >>> >>> >>> On 10 Sep 2011, at 22:56, Robson Glasscock <glasscockrc@vcu.edu> wrote: >>> >>>> I'm having a hard time understanding the structure of your "first >>>> file" and your "second file. Do your files looks like this: >>>> >>>> File 1: >>>> x1 >>>> (unique id + educational level) >>>> >>>> File 2: >>>> x1 >>>> (unique id) >>>> >>>> so that File 1 contains a concatenated variable? >>>> >>>> If File 1 has one variable, x1, that is concatenated, then I don't >>>> think you need to merge the files together to get what you want. You >>>> would just need to split x1(unique id + educational level) into >>>> x1(unique id) and x2(educational level). The substr function may be >>>> used to do this. >>>> >>>> -help substr- >>>> >>>> best, >>>> Robson Glasscock >>>> >>>> On Fri, Sep 9, 2011 at 5:27 PM, Ay <yuniphone@yahoo.co.id> wrote: >>>>> >>>>> I am using stata 11.0 >>>>> >>>>> How can i generate or change a variable that contains for instance, educational level or father and mother as 'Type'? >>>>> The variables are in strings format. >>>>> >>>>> The reason i am asking this question is that, i want to merge these 'type' variable (var B) with other variable. >>>>> I could not do this since the second file only has variable A as individual id variable. While in the first file, it has var A and var B ('type' or level variable) as unique Id. >>>>> >>>>> If anyone knows other ways besides generating the type variable before merging, I really appreciate it. >>>>> >>>>> Variable a >>>>> 1,2,1,1,2,3,3 >>>>> >>>>> Variable b(type) >>>>> A,A,B,C,B,C,A >>>>> >>>>> Many thanks. >>>>> >>>>> Regards, >>>>> >>>>> Yun >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> * >>>>> * 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/ > > * > * 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: Change variable***From:*Ay <yuniphone@yahoo.co.id>

**References**:**st: Change variable***From:*Ay <yuniphone@yahoo.co.id>

**Re: st: Change variable***From:*Robson Glasscock <glasscockrc@vcu.edu>

**Re: st: Change variable***From:*Ay <yuniphone@yahoo.co.id>

**Re: st: Change variable***From:*Robson Glasscock <glasscockrc@vcu.edu>

**Re: st: Change variable***From:*Ay <yuniphone@yahoo.co.id>

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