trusted
183
edits
Talk:Simple examples: Difference between revisions
Jump to navigation
Jump to search
no edit summary
(Created page with "Neither 2 mave 3 4.5 7 21 nor 2(+⌿÷≢)/3 4.5 7 21 work in Dyalog APL 18 or GNU APL. --~~~~") |
No edit summary |
||
| Line 1: | Line 1: | ||
== Moving average == | |||
Neither | Neither | ||
| Line 8: | Line 10: | ||
work in Dyalog APL 18 or GNU APL. --[[User:Andrii Makukha|Andrii Makukha]] ([[User talk:Andrii Makukha|talk]]) 15:19, 26 June 2020 (UTC) | work in Dyalog APL 18 or GNU APL. --[[User:Andrii Makukha|Andrii Makukha]] ([[User talk:Andrii Makukha|talk]]) 15:19, 26 June 2020 (UTC) | ||
You're totally right. It is plain wrong because it tries to use windowed reduction in APL like infix in J. An easy fix would be to combine <source lang=apl inline>(+⌿÷≢)</source> with concatenation <source lang=apl inline>,</source> by atop so that it looks like <source lang=apl inline>2((+⌿÷≢),)/3 4.5 7 21</source> (or <source lang=apl inline>2(+⌿÷≢)⍤,/3 4.5 7 21</source> in Dyalog 18.0); a general solution (allowing window size higher than 2) would be to extract windows and apply average on each of them <source lang=apl inline>(+⌿÷≢)¨ 2,/3 4.5 7 21</source>. I doubt if it's worth keeping either way in this context. --[[User:Bubbler|Bubbler]] ([[User talk:Bubbler|talk]]) 14:07, 27 June 2020 (UTC) | |||