Namespace: joker.set
v1.0Contents
Summary
Set operations such as union/intersection.
Index
 difference
 index
 intersection
 join
 mapinvert
 project
 rename
 renamekeys
 select
 subset?
 superset?
 union
Legend

Constant
Variable
Function
Macro
Special form
Type
GoVar
Receiver/Method
Constants
Constants are variables with :const true in their metadata. Joker currently does not recognize them as special; as such, it allows redefining them or their values.
(None.)
Variables

(None.)
Functions, Macros, and Special Forms

difference
Function v1.0(difference s1)
(difference s1 s2)
(difference s1 s2 & sets)
Return a set that is the first set without elements of the remaining sets
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index
Function v1.0(index xrel ks)
Returns a map of the distinct values of ks in the xrel mapped to a
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set of the maps in xrel with the corresponding values of ks. 
intersection
Function v1.0(intersection s1)
(intersection s1 s2)
(intersection s1 s2 & sets)
Return a set that is the intersection of the input sets
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join
Function v1.0(join xrel yrel)
(join xrel yrel km)
When passed 2 rels, returns the rel corresponding to the natural
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join. When passed an additional keymap, joins on the corresponding
keys. 
mapinvert
Function v1.0(mapinvert m)
Returns the map with the vals mapped to the keys.
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project
Function v1.0(project xrel ks)
Returns a rel of the elements of xrel with only the keys in ks
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rename
Function v1.0(rename xrel kmap)
Returns a rel of the maps in xrel with the keys in kmap renamed to the vals in kmap
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renamekeys
Function v1.0(renamekeys map kmap)
Returns the map with the keys in kmap renamed to the vals in kmap
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select
Function v1.0(select pred xset)
Returns a set of the elements for which pred is true
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subset?
Function v1.0(subset? set1 set2)
Is set1 a subset of set2?
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superset?
Function v1.0(superset? set1 set2)
Is set1 a superset of set2?
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union
Function v1.0(union)
(union s1)
(union s1 s2)
(union s1 s2 & sets)
Return a set that is the union of the input sets
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Types

(None.)