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set xr to Tuple(v, v) -- (value, remainder)
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repeat -- Function applied to remainder.
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set mb to |λ|(|2| of xr)
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else -- New (value, remainder) tuple,
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set xr to Just of mb
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set xs to ({|1| of xr} & xs)
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end unfoldl
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on unfoldr(f, v)
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property valueResidue : {v, v}
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set valueResidue to g's |λ|(item 2 of (valueResidue))
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if missing value ≠ valueResidue then
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item 1 of (valueResidue)
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end unfoldr
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on union(xs, ys)
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script flipDelete
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my |delete|(x, xs)
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set sx to nub(xs)
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sx & foldl(flipDelete, nub(ys), sx)
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end union
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on unionBy(fnEq, xs, ys)
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script flipDeleteByEq
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deleteBy(fnEq, x, xs)
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xs & foldl(flipDeleteByEq, nubBy(fnEq, ys), xs)
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end unionBy
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on unionSet(s, s1)
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set sUnion to current application's NSMutableSet's alloc's init()
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sUnion's setSet:(s)
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sUnion's unionSet:(s1)
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return sUnion
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end unionSet
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on unlines(xs)
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{my text item delimiters, linefeed}
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end unlines
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on unsnoc(xs)
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set blnString to class of xs is string
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if lng = 0 then
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set h to item -1 of xs
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Just(Tuple(text 1 thru -2 of xs, h))
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Just(Tuple(items 1 thru -2 of xs, h))
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Just(Tuple("", h))
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Just(Tuple({}, h))
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end unsnoc
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on |until|(p, f, x)
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set mp to mReturn(p)
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repeat until mp's |λ|(v)
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set v to mf's |λ|(v)
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end |until|
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on unwords(xs)
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{my text item delimiters, space}
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end unwords
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on unwrap(nsValue)
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if nsValue is missing value then
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item 1 of ((ca's NSArray's arrayWithObject:nsValue) as list)
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end unwrap
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set end of xs to |1| of xy
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set end of ys to |2| of xy
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return Tuple(xs, ys)
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on unzip3(xyzs)
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repeat with xyz in xyzs
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set end of xs to |1| of xyz
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set end of ys to |2| of xyz
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set end of zs to |3| of xyz
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return TupleN({xs, ys, zs})
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end unzip3
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on unzip4(wxyzs)
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set ws to {}
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repeat with wxyz in wxyzs
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set end of ws to |1| of wxyz
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set end of xs to |2| of wxyz
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set end of ys to |3| of wxyz
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set end of zs to |4| of wxyz
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return TupleN({ws, xs, ys, zs})
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end unzip4
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on unzipN(tpls)
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if 0 < length of tpls then
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set xs to replicate(length of item 1 of tpls, {})
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on |λ|(a, tpl)
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on |λ|(x, i)
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x & Just of lookupDict(i as string, tpl)
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map(inner, a)
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foldl(go, xs, tpls)
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end unzipN
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on variance(xs)
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set m to mean(xs)
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a + (x - m) ^ 2
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foldl(result, 0, xs) / ((length of xs) - 1)
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end variance
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on |words|(s)
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(((ca's NSString's stringWithString:(s))'s ¬
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componentsSeparatedByCharactersInSet:(ca's ¬
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NSCharacterSet's whitespaceAndNewlineCharacterSet()))'s ¬
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filteredArrayUsingPredicate:(ca's ¬
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NSPredicate's predicateWithFormat:"0 < length")) as list
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end |words|
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on wrap(v)
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ca's (NSArray's arrayWithObject:v)'s objectAtIndex:0
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end wrap
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on writeFile(strPath, strText)
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(ca's NSString's stringWithString:strText)'s ¬
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writeToFile:(stringByStandardizingPath of ¬
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