91 lines
2.5 KiB
Text
91 lines
2.5 KiB
Text
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F mc_rank([(Int, String)] iterable)
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‘Modified competition ranking’
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[(Float, (Int, String))] r
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V lastresult = -1
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[(Int, String)] fifo
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L(item) iterable
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I item[0] == lastresult
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fifo [+]= item
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E
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V n = L.index
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L !fifo.empty
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r.append((n, fifo.pop(0)))
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lastresult = item[0]
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fifo [+]= item
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L !fifo.empty
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r.append((iterable.len, fifo.pop(0)))
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R r
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F sc_rank([(Int, String)] iterable)
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‘Standard competition ranking’
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[(Float, (Int, String))] r
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V lastresult = -1
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V lastrank = -1
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L(item) iterable
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I item[0] == lastresult
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r.append((lastrank, item))
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E
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V n = L.index + 1
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r.append((n, item))
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lastresult = item[0]
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lastrank = n
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R r
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F d_rank([(Int, String)] iterable)
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‘Dense ranking’
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[(Float, (Int, String))] r
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V lastresult = -1
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V lastrank = 0
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L(item) iterable
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I item[0] == lastresult
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r.append((lastrank, item))
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E
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lastresult = item[0]
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lastrank++
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r.append((lastrank, item))
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R r
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F o_rank([(Int, String)] iterable)
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‘Ordinal ranking’
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R enumerate(iterable, 1).map((i, item) -> ((Float(i), item)))
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F f_rank([(Int, String)] iterable)
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‘Fractional ranking’
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[(Float, (Int, String))] r
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V last = -1
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[(Int, (Int, String))] fifo
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L(item) iterable
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I item[0] != last
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I !fifo.empty
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V mean = Float(sum(fifo.map(f -> f[0]))) / fifo.len
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L !fifo.empty
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r.append((mean, fifo.pop(0)[1]))
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last = item[0]
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fifo.append((L.index + 1, item))
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I !fifo.empty
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V mean = sum(fifo.map(f -> f[0])) / fifo.len
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L !fifo.empty
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r.append((mean, fifo.pop(0)[1]))
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R r
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V scores = [(44, ‘Solomon’),
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(42, ‘Jason’),
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(42, ‘Errol’),
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(41, ‘Garry’),
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(41, ‘Bernard’),
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(41, ‘Barry’),
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(39, ‘Stephen’)]
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print("\nScores to be ranked (best first):")
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L(n, s) scores
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print(‘ #2 #.’.format(n, s))
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L(ranker, ranking_method) [(sc_rank, ‘Standard competition ranking’),
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(mc_rank, ‘Modified competition ranking’),
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(d_rank, ‘Dense ranking’),
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(o_rank, ‘Ordinal ranking’),
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(f_rank, ‘Fractional ranking’)]
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print("\n#.:".format(ranking_method))
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L(rank, score) ranker(scores)
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print(‘ #3, (#., #.)’.format(rank, score[0], score[1]))
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