Hi,
How is the best way to count the occurrences of values in a list? I have a
list with 6000+ random generated numbers and I need to count how many times
each of one appear.
Thank's in advance
Rodrigo Peres
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you could try to
1) sort the list from low to high
2) count the list (so you have the total number of items in the list)
3) the trick
x = getPos(mysortedlist,mysortedlist[nrofitemsinthelist]) -- this will
give you the FIRST occurence of the last item in the list
y = mysortedlist[x-1]) --gives
Well, you could do something like this (caution: untested e-mail Lingo)...
-- aList = #linearList or #propList
-- returns a #propList where
-- property is a value from aList
-- value is the number of occurrences of that aList value
on mListValuesCounts ( aList )
if not ilk ( aList, #list )
here some code that doesn't use any (lingo) repeat loop, so might be a
bit faster (but only works for lists that contain numbers only):
on howMany (tList, tValue)
tmp = tList.duplicate()
tmp.sort()
n = tmp.getPos(tValue)
if n = 0 then return 0
tmp = - tmp
tmp.sort()
return (tmp.count +
-- here's my take (similar to others)
-- it creates a proplist with
-- propnames = the occurance names
-- values = the counts
-- (email Lingo)
on cnt inList
testList = inList.duplicate()
testList.sort()
outPList = [:]
pCount = testList.count
repeat with i = 1 to pCount
pTarget =
