[REBOL] Picks
From: andrew::martin::colenso::school::nz at: 12-Aug-2003 17:49
For those times, when there just isn't enough pick... :)
Here's my nifty function of the day:
Picks: func [
{Returns the values at the specified positions in the series.}
Series [series! pair! event! money! date! time! object! port!
tuple! any-function!]
Indexes [block!]
] [
foreach Index Indexes collect/only [
pick Series Index
]
]
And I use it like this:
transpose Picks transpose Table [1 2 5 6 8 9 11 12 14 15
17 18]
to pick out columns from a table by index number.
Andrew J Martin
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