Group: Difference between revisions
Content added Content deleted
No edit summary |
No edit summary |
||
| Line 7: | Line 7: | ||
`a`b`c`d`k!(0 1 7 8;,2;3 4 6;,5;,9) |
`a`b`c`d`k!(0 1 7 8;,2;3 4 6;,5;,9) |
||
</pre> |
</pre> |
||
The [[keys]] from the '''group''' dictionary represent the [[distinct]] elements of the array. |
|||
<pre> |
|||
="abracadabra" |
|||
"abrcd"!(0 3 5 7 10;1 8;2 9;,4;,6) |
|||
!="abracadabra" |
|||
"abrcd" |
|||
?"abracadabra" |
|||
"abrcd" |
|||
</pre>{{Works in|ngn/k}} |
|||
Revision as of 22:26, 9 July 2021
Group
=x
The group primitive, denoted by =, is used to group the indices of an array by the values they represent in the array, returning a dictionary.
=`a`a`b`c`c`d`c`a`a`k `a`b`c`d`k!(0 1 7 8;,2;3 4 6;,5;,9)
The keys from the group dictionary represent the distinct elements of the array.
="abracadabra" "abrcd"!(0 3 5 7 10;1 8;2 9;,4;,6) !="abracadabra" "abrcd" ?"abracadabra" "abrcd"
Works in: ngn/k