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The Stata Journal
Volume 10 Number 2: pp. 281-296

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Speaking Stata: Finding variables

Nicholas J. Cox
Department of Geography
Durham University
Durham City, UK
Abstract.  A standard task in data management is producing a list of variable names showing which variables have specific properties, such as being of string type, or having value labels attached, or having a date format. A first-principles strategy is to loop over variables, checking one by one which have the property or properties concerned. I discuss this strategy in detail with a variety of examples. A canned alternative is offered by the official command ds or by a new command, findname, published formally with this column.
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