Hi Carfield, That's exactly right: ind-1 for the previous, ind+1 for the
next. If we take a look at some of the intermediate outputs of the
nextchange function: / Trades table where sym=`GOOG q)t time sym src
price size ------------------------------...
Hi Carfield, My previous response should have read that the wj approach
will work as-is for multiple syms, but the example was with a single sym
for clarity. SInce the wj solution isn't accurate enough, it's possible
to use a binary search to find th...
Hi Carfield, You could use a wj (http://code.kx.com/wiki/Reference/wj)
to give a straightfoward approximation. It assumes a liquid market, but
you can adjust the window interval to suit. / Create some sample data
Hello, Would it be possible for you to provide some more information?
Are all the tables on disk? What size are they? What memory constraints
do you have? You suggested that splaying the tables might help. When you
load a splayed table, the table is ...
Hi Xinyu,Can I ask what command line arguments you started the
tickerplant with? From the error code and what you have described, it
sounds as though it was started with the -b option. This blocks write
access, which could explain why you can do a 1+...