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Iterate over deepest values in a nested Association

JoinAcross on nested association by nested keyExtract all Values from nested AssociationHow to check keys and values in nested Associations?Table from grouping an association by valueUsing Case to pull Keys and Values out of a nested AssociationReplacing values in an association based on keysRename Keys in Nested Association`Transpose` nested `Association`Keyed eigensystem for nested AssociationIterate over keys of association

.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;

3

1

$begingroup$

Is it possible to iterate over the values of the deepest layer of keys in a nested association? For example:

assoc = <| "a"->0, "b"-> <| "c"->"one" ,"d"->2 , "e"->3|>, "f"->4|>

Would it be possible to iterate over just the values of at the deepest level in this example 0,"one",2,3,4? Or, possible to iterate over the deepest level of keys such that I could test the type for the value of each key?

expression-manipulation associations iteration

share|improve this question

edited 7 hours ago

b3m2a1

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asked 8 hours ago

hoodedarcherhoodedarcher

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$endgroup$

add a comment | 

3

1

$begingroup$

Is it possible to iterate over the values of the deepest layer of keys in a nested association? For example:

assoc = <| "a"->0, "b"-> <| "c"->"one" ,"d"->2 , "e"->3|>, "f"->4|>

Would it be possible to iterate over just the values of at the deepest level in this example 0,"one",2,3,4? Or, possible to iterate over the deepest level of keys such that I could test the type for the value of each key?

expression-manipulation associations iteration

share|improve this question

edited 7 hours ago

b3m2a1

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asked 8 hours ago

hoodedarcherhoodedarcher

12588 bronze badges

$endgroup$

add a comment | 

$begingroup$

Is it possible to iterate over the values of the deepest layer of keys in a nested association? For example:

assoc = <| "a"->0, "b"-> <| "c"->"one" ,"d"->2 , "e"->3|>, "f"->4|>

Would it be possible to iterate over just the values of at the deepest level in this example 0,"one",2,3,4? Or, possible to iterate over the deepest level of keys such that I could test the type for the value of each key?

expression-manipulation associations iteration

share|improve this question

edited 7 hours ago

b3m2a1

30.3k33 gold badges6161 silver badges179179 bronze badges

asked 8 hours ago

hoodedarcherhoodedarcher

12588 bronze badges

$endgroup$

assoc = <| "a"->0, "b"-> <| "c"->"one" ,"d"->2 , "e"->3|>, "f"->4|>

share|improve this question

edited 7 hours ago

b3m2a1

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asked 8 hours ago

hoodedarcherhoodedarcher

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share|improve this question

edited 7 hours ago

b3m2a1

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asked 8 hours ago

hoodedarcherhoodedarcher

12588 bronze badges

edited 7 hours ago

b3m2a1

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edited 7 hours ago

b3m2a1

30.3k33 gold badges6161 silver badges179179 bronze badges

asked 8 hours ago

hoodedarcherhoodedarcher

12588 bronze badges

asked 8 hours ago

hoodedarcherhoodedarcher

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3 Answers
3

active

oldest

votes

5

$begingroup$

Level[assoc, -1]
(* 0, "one", 2, 3, 4 *)

share|improve this answer

answered 8 hours ago

RomanRoman

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$endgroup$

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  That is pretty nifty. Thanks!
  $endgroup$
  – kickert
  7 hours ago
  

  
  
  
  

add a comment | 

2

$begingroup$

Map[
 AssociationMap[
 keyTest[#[[1]]] -> valueTest[#[[2]]] & 
 ],
 <|"a" -> 0, "b" -> <|"c" -> "one", "d" -> 2, "e" -> 3|>, "f" -> 4|>,
 -2
 ]

<|"a" -> 0, 
 "b" -> <|keyTest["c"] -> valueTest["one"], keyTest["d"] -> valueTest[2], 
 keyTest["e"] -> valueTest[3]|>, "f" -> 4|>

share|improve this answer

answered 8 hours ago

b3m2a1b3m2a1

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$endgroup$

add a comment | 

2

$begingroup$

assoc /. Association -> (Values@*List) // Flatten

0, "one", 2, 3, 4

When some values are non-atomic this approach and the deepest Level approach give different results:

assoc2 = <| "a" -> foo[0], "b" -> <| "c" -> "one" , "d" -> 2 , "e" -> 3|>, 
 "f" -> bar[1], foo[3]|>;

assoc2 /. Association -> (Values@*List) // Flatten

foo[0], "one", 2, 3, bar[1], foo[3]

Level[assoc2, -1]

0, "one", 2, 3, 1, 3

share|improve this answer

edited 3 hours ago

answered 4 hours ago

kglrkglr

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$endgroup$

add a comment | 

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5

$begingroup$

Level[assoc, -1]
(* 0, "one", 2, 3, 4 *)

share|improve this answer

answered 8 hours ago

RomanRoman

12k11 gold badge1919 silver badges4646 bronze badges

$endgroup$

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  That is pretty nifty. Thanks!
  $endgroup$
  – kickert
  7 hours ago
  

  
  
  
  

add a comment | 

5

$begingroup$

Level[assoc, -1]
(* 0, "one", 2, 3, 4 *)

share|improve this answer

answered 8 hours ago

RomanRoman

12k11 gold badge1919 silver badges4646 bronze badges

$endgroup$

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  That is pretty nifty. Thanks!
  $endgroup$
  – kickert
  7 hours ago
  

  
  
  
  

add a comment | 

$begingroup$

Level[assoc, -1]
(* 0, "one", 2, 3, 4 *)

share|improve this answer

answered 8 hours ago

RomanRoman

12k11 gold badge1919 silver badges4646 bronze badges

$endgroup$

Level[assoc, -1]
(* 0, "one", 2, 3, 4 *)

share|improve this answer

answered 8 hours ago

RomanRoman

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answered 8 hours ago

RomanRoman

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answered 8 hours ago

RomanRoman

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2

$begingroup$

Map[
 AssociationMap[
 keyTest[#[[1]]] -> valueTest[#[[2]]] & 
 ],
 <|"a" -> 0, "b" -> <|"c" -> "one", "d" -> 2, "e" -> 3|>, "f" -> 4|>,
 -2
 ]

<|"a" -> 0, 
 "b" -> <|keyTest["c"] -> valueTest["one"], keyTest["d"] -> valueTest[2], 
 keyTest["e"] -> valueTest[3]|>, "f" -> 4|>

share|improve this answer

answered 8 hours ago

b3m2a1b3m2a1

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$endgroup$

add a comment | 

2

$begingroup$

Map[
 AssociationMap[
 keyTest[#[[1]]] -> valueTest[#[[2]]] & 
 ],
 <|"a" -> 0, "b" -> <|"c" -> "one", "d" -> 2, "e" -> 3|>, "f" -> 4|>,
 -2
 ]

<|"a" -> 0, 
 "b" -> <|keyTest["c"] -> valueTest["one"], keyTest["d"] -> valueTest[2], 
 keyTest["e"] -> valueTest[3]|>, "f" -> 4|>

share|improve this answer

answered 8 hours ago

b3m2a1b3m2a1

30.3k33 gold badges6161 silver badges179179 bronze badges

$endgroup$

add a comment | 

$begingroup$

Map[
 AssociationMap[
 keyTest[#[[1]]] -> valueTest[#[[2]]] & 
 ],
 <|"a" -> 0, "b" -> <|"c" -> "one", "d" -> 2, "e" -> 3|>, "f" -> 4|>,
 -2
 ]

<|"a" -> 0, 
 "b" -> <|keyTest["c"] -> valueTest["one"], keyTest["d"] -> valueTest[2], 
 keyTest["e"] -> valueTest[3]|>, "f" -> 4|>

share|improve this answer

answered 8 hours ago

b3m2a1b3m2a1

30.3k33 gold badges6161 silver badges179179 bronze badges

$endgroup$

Map[
 AssociationMap[
 keyTest[#[[1]]] -> valueTest[#[[2]]] & 
 ],
 <|"a" -> 0, "b" -> <|"c" -> "one", "d" -> 2, "e" -> 3|>, "f" -> 4|>,
 -2
 ]

<|"a" -> 0, 
 "b" -> <|keyTest["c"] -> valueTest["one"], keyTest["d"] -> valueTest[2], 
 keyTest["e"] -> valueTest[3]|>, "f" -> 4|>

share|improve this answer

answered 8 hours ago

b3m2a1b3m2a1

30.3k33 gold badges6161 silver badges179179 bronze badges

answered 8 hours ago

b3m2a1b3m2a1

30.3k33 gold badges6161 silver badges179179 bronze badges

answered 8 hours ago

b3m2a1b3m2a1

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2

$begingroup$

assoc /. Association -> (Values@*List) // Flatten

0, "one", 2, 3, 4

When some values are non-atomic this approach and the deepest Level approach give different results:

assoc2 = <| "a" -> foo[0], "b" -> <| "c" -> "one" , "d" -> 2 , "e" -> 3|>, 
 "f" -> bar[1], foo[3]|>;

assoc2 /. Association -> (Values@*List) // Flatten

foo[0], "one", 2, 3, bar[1], foo[3]

Level[assoc2, -1]

0, "one", 2, 3, 1, 3

share|improve this answer

edited 3 hours ago

answered 4 hours ago

kglrkglr

201k1010 gold badges230230 silver badges458458 bronze badges

$endgroup$

add a comment | 

2

$begingroup$

assoc /. Association -> (Values@*List) // Flatten

0, "one", 2, 3, 4

When some values are non-atomic this approach and the deepest Level approach give different results:

assoc2 = <| "a" -> foo[0], "b" -> <| "c" -> "one" , "d" -> 2 , "e" -> 3|>, 
 "f" -> bar[1], foo[3]|>;

assoc2 /. Association -> (Values@*List) // Flatten

foo[0], "one", 2, 3, bar[1], foo[3]

Level[assoc2, -1]

0, "one", 2, 3, 1, 3

share|improve this answer

edited 3 hours ago

answered 4 hours ago

kglrkglr

201k1010 gold badges230230 silver badges458458 bronze badges

$endgroup$

add a comment | 

$begingroup$

assoc /. Association -> (Values@*List) // Flatten

0, "one", 2, 3, 4

When some values are non-atomic this approach and the deepest Level approach give different results:

assoc2 = <| "a" -> foo[0], "b" -> <| "c" -> "one" , "d" -> 2 , "e" -> 3|>, 
 "f" -> bar[1], foo[3]|>;

assoc2 /. Association -> (Values@*List) // Flatten

foo[0], "one", 2, 3, bar[1], foo[3]

Level[assoc2, -1]

0, "one", 2, 3, 1, 3

share|improve this answer

edited 3 hours ago

answered 4 hours ago

kglrkglr

201k1010 gold badges230230 silver badges458458 bronze badges

$endgroup$

assoc /. Association -> (Values@*List) // Flatten

assoc2 = <| "a" -> foo[0], "b" -> <| "c" -> "one" , "d" -> 2 , "e" -> 3|>, 
 "f" -> bar[1], foo[3]|>;

assoc2 /. Association -> (Values@*List) // Flatten

Level[assoc2, -1]

share|improve this answer

edited 3 hours ago

answered 4 hours ago

kglrkglr

201k1010 gold badges230230 silver badges458458 bronze badges

answered 4 hours ago

kglrkglr

201k1010 gold badges230230 silver badges458458 bronze badges

answered 4 hours ago

kglrkglr

201k1010 gold badges230230 silver badges458458 bronze badges