Transpose: Difference between revisions
Content added Content deleted
No edit summary |
(→Atoms and lists: refs) |
||
| Line 10: | Line 10: | ||
`c`d) |
`c`d) |
||
==Atoms and lists== |
==Atoms and lists== |
||
Transposing a list in oK or ngn/k [[enlist]]s it. Transposing an atom enlists twice: |
Transposing a list in oK<ref>https://github.com/JohnEarnest/ok/issues/77</ref> or ngn/k [[enlist]]s it. Transposing an atom enlists twice: |
||
+,0 |
+,0 |
||
,,0 |
,,0 |
||
+0 |
+0 |
||
,,0 |
,,0 |
||
K4 and Kona return the argument as-is. |
K3, K4, and Kona<ref>https://github.com/kevinlawler/kona/issues/527</ref> return the argument as-is. |
||
K9 throws a rank error. |
K9 throws a rank error. |
||
Revision as of 17:01, 6 July 2021
Transpose
{{{1}}}
Transpose, a.k.a. flip, swaps the two leading axes of a 2+ dimensional rectangular array. Dialects differ in their treatment of atoms, lists, and ragged arrays.
+("ab";"cd";"ef")
("ace"
"bdf")
Atoms in otherwise rectangular arrays are extended to the full length of the corresponding dimension:
+(`a`b`c;`d) (`a`d `b`d `c`d)
Atoms and lists
Transposing a list in oK[1] or ngn/k enlists it. Transposing an atom enlists twice:
+,0 ,,0 +0 ,,0
K3, K4, and Kona[2] return the argument as-is.
K9 throws a rank error.
Ragged arrays
oK and ngn/k reshape shorter rows to the length of the longest row:
+(`a`b`c;`d`e) (`a`d `b`e `c`d)
K9 pads shorter rows with nulls:
+(`a`b`c;`d`e) (`a`d `b`e `c`)