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From |
Kyle Hood <kyle.hood@yale.edu> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: RE: combining many data files |

Date |
Wed, 19 Nov 2008 22:03:59 -0500 |

Matt,

Kyle Matt Spittal wrote:

Mingfeng, I'm a big fan of using -foreach- for these types of problems. The first thing is to make sure that your datasets are named in a similar way. In the example below I have used a set of datasets called data1, data2, ..., data30. Once that is done, you can place your -append- command inside a -foreach- loop. For instance: use data1, clear foreach num of numlist 2/30 { append using data`num' } This code is really just a shortcut for the following: use data1, clear append using data2 append using data3 ... append using data30 Other variations are possible too, see -help foreach-. -- Mattmatt.spittal@cancervic.org.au-----Original Message----- From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu]On Behalf Of Mingfeng Lin Sent: Thursday, 20 November 2008 1:35 PM To: statalist@hsphsun2.harvard.edu Subject: st: combining many data files Greetings! I am wondering if there's a straightforward way to append a large number of .dta files into one file using Stata? The -append- command seems to disallow wildcards in the file names. I do find one method from UCLA's ATS website, http://www.ats.ucla.edu/stat/stata/faq/append_many_files.htm but I'm still hoping there's an easier way, or somehow getting the -append- command to recognize the wildcards - so that I could just simply type append using *.dta Thanks :) Mingfeng * * 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/

-- Kyle Hood Department of Economics Yale University New Haven, CT website: http://www.econ.yale.edu/~kkh25 * * 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: combining many data files***From:*"Matt Spittal" <Matt.Spittal@cancervic.org.au>

**References**:**st: RE: combining many data files***From:*"Matt Spittal" <Matt.Spittal@cancervic.org.au>

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