BobGuest
I am now getting an ‘nyi error when I try to flip my table.
What does nyi mean?
q)UKTradeTable
date time | sym size price
-----------------------| -----------------
2013.03.23 09:00:00.026| HG 624 113.0829
2013.03.23 09:00:00.055| KIL 403 169.8952
2013.03.23 09:00:00.162| IUI 40 90.202
2013.03.23 09:00:00.183| KIL 203 129.4232
2013.03.23 09:00:00.229| IUI 18 52.69284
2013.03.23 09:00:00.236| AFG 176 30.63345
..
q)flip UKTradeTable
'nyi
If I unkey it, it works as expected. Are there many functions which work differently on keyed tables compared to unkeyed tables?
nyi = Not Yet Implemented
Currently you can’t flip a keyed table in kdb, either use 0!t or () xkey t to remove the key and then flip the table.
q)t:([a:1 2 3] b:`p`o`i)
q)t
a| b
-| -
1| p
2| o
3| i
q)flip t
'nyi
q)flip 0!t
a| 1 2 3
b| p o i
q)flip () xkey t
a| 1 2 3
b| p o i
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