New Constructs: Tally with Key II Index   <<   >>


{≢⍵}⌸y 2.5-3

 

   ?0
0.549364

   ?2 3⍴0
0.384692 0.331927 0.026112 
0.773553 0.784359 0.0516709

   ¯1+{≢⍵}⌸(⍳5),⌊5×?1e6⍴0
200742 199084 199985 200288 199901