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Tips Talk:Check if a variable exists in a dataset

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good tip --Art Carpenter 17:50, 7 January 2011 (UTC)

Good tip once code fixed. Description says it returns 0/1 (for true/false), but code is -1/0. Also should the nor found be WARNING or ERROR? See Tips:Using NOTE, WARNING, ERROR in Your Program's Generated Messages. --Don Henderson 02:02, 17 January 2011 (UTC)

Sorry. Misread it. Does return 0/1. --Don Henderson 02:03, 17 January 2011 (UTC)

Good tip.--Murphy Choy From Singapore 05:45, 28 March 2011 (UTC)

Good tip. Especially useful when used with Conditional Processing. -- Koo Ping Shung from Singapore.