kdb_newbie
Forum Replies Created
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thank you all!!!
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thank you so much for all the help! super clear explanation!
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Thank you very much! May I ask where is the documentation on “-1” used here?
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I am trying to understand the .u.rep function in r.q: .u.rep: (.[;();:;].)each x Shouldn't it apply the function to every item in x since we do "each"; it still needs the right-most dot to apply the function to each pair of x Here, x: x:((`trade;([]time:`time$();sym:`$();price:`float$();size:`int$()));(`quote;([]time:`time$();sym:`$();bid:`float$();bsize:`int$();ask:`float$();asize:`int$())));
Why does it create a projection? (without the right-most dot, it’s a projection):
.u.rep: (.[;();:;])each x