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--- calc_lookup_table_difference [2011/07/25 16:29]
hermann
+++ calc_lookup_table_difference [2013/07/18 20:00]
admin [Calc Lookup Table Union]
@@ Line 1: / Line 1: @@
-====== Calc Lookup Table Union ======
+====== Calc Lookup Table Difference ======
 ===== Description =====
-This functor calculates a lookup table that is the union of two lookup tables.
+This functor calculates a lookup table that corresponds to the difference between two lookup tables.
 ===== Inputs =====
@@ Line 13: / Line 13: @@
 ===== Optional Inputs =====
-^ Name                                     ^ Type                  ^ Description                                                                                                                               ^ Default Value ^
+^ Name  ^ Type  ^ Description  ^ Default Value  ^
-| use First Table To Solve Duplicated Key  | [[Bool Type|Bool  ]]  | If true, in the case of duplicated keys, the value of the first table is selected; otherwise, the value of the second table is selected.  | True          |
+| use Symmetrical Difference  | [[Bool Type|Bool]]  | If true, the symmetrical difference between two lookup tables is calculated; otherwise, the relative complement is used.  | True  |
 ===== Output =====
@@ Line 27: / Line 27: @@
 ===== Notes =====
-For further information about set intersection, see [[wp>Set_union]].
+The column names from the first input table are assigned to the output table.
+For further information about difference between two sets, see [[wp>Difference_(set_theory)]] and [[wp>Symmetric_difference]].
 ===== Internal Name =====
-CalcLookupTableUnion
+CalcLookupTableDifference