4,493
edits
Table: Difference between revisions
Jump to navigation
Jump to search
m
Text replacement - "<source" to "<syntaxhighlight"
m (Text replacement - "</source>" to "</syntaxhighlight>") Tags: Mobile edit Mobile web edit |
m (Text replacement - "<source" to "<syntaxhighlight") Tags: Mobile edit Mobile web edit |
||
| Line 1: | Line 1: | ||
{{Built-in|Table|⍪}}, or '''Ravel Items''', is a [[monadic]] [[primitive function]] which returns a [[matrix]] formed by applying [[Ravel]] to each [[major cell]] of the given array. Table shares its [[glyph]] < | {{Built-in|Table|⍪}}, or '''Ravel Items''', is a [[monadic]] [[primitive function]] which returns a [[matrix]] formed by applying [[Ravel]] to each [[major cell]] of the given array. Table shares its [[glyph]] <syntaxhighlight lang=apl inline>⍪</syntaxhighlight> with the dyadic function [[catenate|Catenate First]]. | ||
== Examples == | == Examples == | ||
| Line 5: | Line 5: | ||
For arrays of [[rank]] 1 or higher, the result is identical to applying Ravel to major cells: | For arrays of [[rank]] 1 or higher, the result is identical to applying Ravel to major cells: | ||
< | <syntaxhighlight lang=apl> | ||
{⍵(⍴⍵)}⍪5⍴⎕A | {⍵(⍴⍵)}⍪5⍴⎕A | ||
┌─┬───┐ | ┌─┬───┐ | ||
| Line 29: | Line 29: | ||
A [[scalar]] [[argument]] is converted to a 1-by-1 matrix: | A [[scalar]] [[argument]] is converted to a 1-by-1 matrix: | ||
< | <syntaxhighlight lang=apl> | ||
{⍵(⍴⍵)}⍪123 | {⍵(⍴⍵)}⍪123 | ||
┌───┬───┐ | ┌───┬───┐ | ||
| Line 41: | Line 41: | ||
Table is equivalent to [[reshape|reshaping]] with the shape where all trailing axis lengths have been replaced by their [[product]] or, alternatively, the tally concatenated to the [[bound]] divided by the tally: | Table is equivalent to [[reshape|reshaping]] with the shape where all trailing axis lengths have been replaced by their [[product]] or, alternatively, the tally concatenated to the [[bound]] divided by the tally: | ||
< | <syntaxhighlight lang=apl> | ||
⍪2 3 4 2⍴⎕A | ⍪2 3 4 2⍴⎕A | ||
ABCDEFGHIJKLMNOPQRSTUVWX | ABCDEFGHIJKLMNOPQRSTUVWX | ||
| Line 53: | Line 53: | ||
</syntaxhighlight> | </syntaxhighlight> | ||
In languages where the [[Rank (operator)|Rank operator]] is available, Table is equivalent to < | In languages where the [[Rank (operator)|Rank operator]] is available, Table is equivalent to <syntaxhighlight lang=apl inline>,⍤¯1</syntaxhighlight>: | ||
< | <syntaxhighlight lang=apl> | ||
(,⍤¯1)2 3 4 2⍴⎕A | (,⍤¯1)2 3 4 2⍴⎕A | ||
ABCDEFGHIJKLMNOPQRSTUVWX | ABCDEFGHIJKLMNOPQRSTUVWX | ||
YZABCDEFGHIJKLMNOPQRSTUV | YZABCDEFGHIJKLMNOPQRSTUV | ||
</syntaxhighlight> | </syntaxhighlight> | ||
In languages where [[function axis]] is available, Table is equivalent to < | In languages where [[function axis]] is available, Table is equivalent to <syntaxhighlight lang=apl inline>,[1↓⍳≢⍴Y]</syntaxhighlight>: | ||
< | <syntaxhighlight lang=apl> | ||
{,[1↓⍳≢⍴⍵]⍵}2 3 4 2⍴⎕A | {,[1↓⍳≢⍴⍵]⍵}2 3 4 2⍴⎕A | ||
ABCDEFGHIJKLMNOPQRSTUVWX | ABCDEFGHIJKLMNOPQRSTUVWX | ||