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--- transformations:replacecolumn [2015/04/10 14:27] – elenap
+++ transformations:replacecolumn [2021/04/02 02:09] (current) – removed craigt
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-===== Calculate and replace column(s) =====
-This transformation calculates and replaces one or more existing columns using [[syntax:start|expression(s)]]. One expression replaces one column.
-Please note that you can refer to the same column in expressions. In this case previous (old) value from this column will be used.
-EXAMPLE
-**Source table:** Average income and deductions
-^  Country  ^  Gross income   ^  Disposable income  ^  Compulsory deductions  ^
-| United States  |  56067  |  45582  |  18.7%  |
-| Australia  |  51050  |  42617  |  16.52%  |
-| Switzerland  |  53716  |  48414  |  9.87%  |
-| Canada  |  45896  |  37469  |  18.36%  |
-**Objective:** Calculate the $ amount of compulsory deductions for each country and include the result in the table instead of the deductions in %.
-**Transformation parameters:**
-  * Column to replace: Compulsory deductions
-  * Expression: ([Gross income] - [Disposable income])
-**Output table:**
-^  Country  ^  Gross income   ^  Disposable income  ^  Compulsory deductions  ^
-| United States  |  56067  |  45582  |  10485  |
-| Australia  |  51050  |  42617  |   8433  |
-| Switzerland  |  53716  |  48414  |  5302  |
-| Canada  |  45896  |  37469  |   8427  |
-See also
-  * [[transformations:addcolumn|Calculate new column(s)]]