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JP

Hi, I have a minute table <TT>, from which I need to aggregate/process data for different intervals. In my case, as I need the equivalent of a (eg. hourly data from 10:00 to 11:00 must show on the output DT line yyyy.mm.ddD11:00:00), I use an offset va</TT>...

JP

Hi, Newbie question I guess. To simplify, say I have 2 functions f1 & f2: q) f1: {1-x%y} q) f2: {mavg[x;y]} /This is voluntary which actually in this case, have a common argument when a composition is applied, eg. : q) a: til 10 q) g: f1 . (f2 . (3;...

JP

Hi, Hope this will be clear enough; I am trying to pass 2 parameters (x;y) to a function, for convergence: "x" being an initial table, which the convergence function will gradually modify until no change, using... "y", a list, which current value all...

JP

Hi, A bit puzzled here... Say I have a table comprised of 2 columns, with the first one made of variable length lists, and the second showing a binary: t:([] a:{x?50} each 2+100000?100; b:100000?0b) I want to apply a specific function to each list fo...

JP

A bit at lost here... Can someone enlighten me as to how the interpreter works in the following situation: q)show a:10?(-1 0 1) //Just to have something0 1 1 0 -1 0 1 -1 0 0 q)(>)a //That's the curiosity1 2 6 0 3 5 8 9 4 7 I understand this is actual...

JP

Feeling embarrassed in here... This is entirely my mistake; no data missing, but faulty statement transcription in the forum's editor, while playing with the offset. The 2-day interval statement select does indeed yield the correct output. Thank you ...

JP

Many thanks to you both for your inputs, very useful illustrations of projection/iteration/composition functionalities. The function approaches work well in their current incarnation, with the small caveat (at least from my understanding) that functi...

JP

Precisely (removing the ), many thanks:-) Funny, I dug into it this am and came up with {f/[x;1 2]}/[t], but didn't think (still not super fluent in q) about using the projection in the lambda. Again, thank you for your time and input. JP

JP

I perfectly understand your example, but there is no convergence per se. It is a standard iterative a list applied to t, as in {y _ x}/[t;2 -3 4]. I realize that the title of my post was not a work of art:-) I posted an example of what I am looking ...

JP

To illustrate what I am looking for: /An example t:([] a:100?10;b:100?1.) /What I am looking for, (case of 2=count list) {[x;it] c1: (-1_(>':) (it+1)>x`a),0b; /Cond1: ID first of each group of 1b's (source of convergence in this ex, til stable) c2: 0...

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xbar & timestamp manipulation

Function composition using common argument

Convergence using binary?

Timing/Memory surprise on 3 versions of <Conditional function applied to lists>

Basic (but still intriguing to me) q Interpreter question

Re: xbar & timestamp manipulation

Re: Function composition using common argument

Re: Convergence using binary?

Re: Convergence using binary?

Re: Convergence using binary?