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--- nan [Sun Oct 31 19:05:42 2010]
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+++ nan [Sun Oct 31 19:06:53 2010]
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 === Example ===
-  * If you set [[set_column_formula|Column Formula]] ''if(col(B) >= 0, col(B), NaN)'', it returns only positive values from column B. Negative values are replaced with NaN value. You can use this expression to filter negative values if you do not want to use them in future calculations. Note that //”Not-a-Number returned at row #”// warning can be shown for such expressions.
+  * If you set a [[set_column_formula|Column Formula]] ''if(col(B) >= 0, col(B), NaN)'', it will return only positive values from column B. Negative values are replaced with NaN value. You can use this expression to filter negative values if you do not want to use them in future calculations. Note that //”Not-a-Number returned at row #”// warning can be shown for such expressions.

MagicPlot Manual