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From |
Maarten Buis <maartenlbuis@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: How many observations can Stata 11 handle? |

Date |
Wed, 15 Feb 2012 15:02:27 +0100 |

On Wed, Feb 15, 2012 at 2:42 PM, Tunga Kantarcı wrote: > Here is a short question. What is the maximum number of observations > that Stata 11 can handle? -help limits- > I have an administrative data set which > includes observations for about 3 million unique individuals, for 20 > variables. I very much doubt that the maximum number of observations is the problem here (unless you are using Small Stata, in which case you get what you pay for). Instead I suspect a problem with memory, specifically I suspect that one or more variables are stored as very long strings. The solution to that is to either not load that/those variable(s) by using -use varlist using filename- instead of -use filename-. You can spot the offending variables using -desc using filename-. Alternatively you can load only the offending variables, fix them and merge them with the rest of the variables. > I plan to draw a sample from the data set using SPSS and transfer the > data to Stata 11 with the Stat-transfer data conversion program. no need to use SPSS: to draw a 70% sample before opening the data you can type -use <filename> if runiform() < .7- Hope this helps, Maarten -------------------------- Maarten L. Buis Institut fuer Soziologie Universitaet Tuebingen Wilhelmstrasse 36 72074 Tuebingen Germany http://www.maartenbuis.nl -------------------------- * * 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: How many observations can Stata 11 handle?***From:*Tunga Kantarcı <tungakantarci@gmail.com>

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