Re: Iterate/Converge syntax Question

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that looks nice

Do also might be a better name for Repeat as it emphasises the =
imperative analogs (k3 used this terminology for this reason i would =
think)

also i find that enlist / list-creation can be very enlightening about =
adverbs across the board
as it’s visual compared to something more arithmetic
to be fair there are a couple of examples like this already on the wiki

Monadic scan/over
q)5 enlist\1
1
,1
,1
,1
,1
,1

q)5(f;)\1<br>1<br>(f;1)
(f;(f;1))
(f;(f;(f;1)))<br>(f;(f;(f;(f;1))))<br>(f;(f;(f;(f;(f;1)))))

Each-es
q)(f;)each 1 2 3<br>f 1
f 2<br>f 3
q)(f;;)prior 1 2 3<br>f 1 0N
f 2 1<br>f 3 2
q)1 2 3(;)/:“abc”
1 2 3 “a”
1 2 3 “b”
1 2 3 “c”
q)1 2 3(;):“abc”
1 “abc”
2 “abc”
3 “abc”
q)1 2 3(;)'“abc”
1 “a”
2 “b”
3 “c”
q)1 2 3(;)/::“abc”
1 “a” 1 “b” 1 “c”
2 “a” 2 “b” 2 “c”
3 “a” 3 “b” 3 “c”
q)1 2 3(;):/:“abc”
1 “a” 2 “a” 3 “a”
1 “b” 2 “b” 3 “b”
1 “c” 2 “c” 3 “c”

scan/over with a function taking more than 2 parameters
q)(f;;;)/[x;0 1 2 3;“abcd”]
f<br>(f;(f;(f;`x;0;“a”);1;“b”);2;“c”)
3
“d”

etc.

Cheers,
Attila

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To: personal-kdbplus@googlegroups.com
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this is a lovely thread. thanks guys.

3

Thanks for the excellent visual examples! 

Do appeals because we have While, so it would mirror the do and while keywords. I’ll give that some thought.




Stephen Taylor | Librarian | Kx | +44 7713 400852 | stephen@kx.com