kdb+ and q

kdb+ and q

Q+A on all things kdb+ database and the q language

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Need to set values inside an array, based on values in another.

Hi, I have z: 199 6 # 0;h: til 199x: 1 4 3 5 0 4 3 2 2 0 2 2 4 2 2 2 2 1 3 1.... (199 values, 0 through 5)I've done the following hh: h,'x to get 0 01 12 23 14 35 36 37 18 29 310 311 112 113 214 415 216 517 318 119 120 121 1..I'd like to set values i...

Heikin-Ashi

Hello I have a table with several instruments trading data like this:instrument granularity time open high low close----------------------------------------------------------------------------------------AUD_USD D 2015.08.25D21:00:00.000000000 0.7127...

Any quick ways to glue tables side by side?

Hi there,I am wondering that if there is a verb or something that could glue two tables side by side? I notice that some verbs allow to join columns with different column names side by side, but fail to do that when the column names are same. Here is...

how do you get access to contribute to code.kx.com

I work for a bank which subscribes to kdb1. How do you get access to contribute to code.kx.com for:wiki ANDcode repo

What does the following snippet do?

I have defined : n:25000;g:{1+(+\x)bin?y}what does this line do? "acgtBDHKMNRSVWY"g[.27 .12 .12 .27,10#.02]3*n; and this one:"actg"g[.3029549426680 .1979883004921 .1975473066391]5*nI'm new to k and q, so please excuse this beginner-level query. Thank...

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