Data commit

Task/Stem-and-leaf-plot/Python/stem-and-leaf-plot-1.py

@@ -0,0 +1,39 @@
+from collections import namedtuple
+from pprint import pprint as pp
+from math import floor
+
+Stem = namedtuple('Stem', 'data, leafdigits')
+
+data0 = Stem((12, 127, 28, 42, 39, 113, 42, 18, 44, 118, 44, 37, 113, 124, 37,
+              48, 127, 36, 29, 31, 125, 139, 131, 115, 105, 132, 104, 123, 35,
+              113, 122, 42, 117, 119, 58, 109, 23, 105, 63, 27, 44, 105, 99,
+              41, 128, 121, 116, 125, 32, 61, 37, 127, 29, 113, 121, 58, 114,
+              126, 53, 114, 96, 25, 109, 7, 31, 141, 46, 13, 27, 43, 117, 116,
+              27, 7, 68, 40, 31, 115, 124, 42, 128, 52, 71, 118, 117, 38, 27,
+              106, 33, 117, 116, 111, 40, 119, 47, 105, 57, 122, 109, 124, 115,
+              43, 120, 43, 27, 27, 18, 28, 48, 125, 107, 114, 34, 133, 45, 120,
+              30, 127, 31, 116, 146),
+             1.0)
+
+def stemplot(stem):
+    d = []
+    interval = int(10**int(stem.leafdigits))
+    for data in sorted(stem.data):
+        data = int(floor(data))
+        stm, lf = divmod(data,interval)
+        d.append( (int(stm), int(lf)) )
+    stems, leafs = list(zip(*d))
+    stemwidth = max(len(str(x)) for x in stems)
+    leafwidth = max(len(str(x)) for x in leafs)
+    laststem, out = min(stems) - 1, []
+    for s,l in d:
+        while laststem < s:
+            laststem += 1
+            out.append('\n%*i |' % ( stemwidth, laststem))
+        out.append(' %0*i' % (leafwidth, l))
+    out.append('\n\nKey:\n Stem multiplier: %i\n X | Y  =>  %i*X+Y\n'
+               % (interval, interval))
+    return ''.join(out)
+
+if __name__ == '__main__':
+    print( stemplot(data0) )

Task/Stem-and-leaf-plot/Python/stem-and-leaf-plot-2.py

@@ -0,0 +1,19 @@
+from collections import OrderedDict, Counter
+
+x= [12, 127, 28, 42, 39, 113, 42, 18, 44, 118, 44, 37, 113, 124, 37, 48,
+    127, 36, 29, 31, 125, 139, 131, 115, 105, 132, 104, 123, 35, 113,
+    122, 42, 117, 119, 58, 109, 23, 105, 63, 27, 44, 105, 99, 41, 128,
+    121, 116, 125, 32, 61, 37, 127, 29, 113, 121, 58, 114, 126, 53, 114,
+    96, 25, 109, 7, 31, 141, 46, 13, 27, 43, 117, 116, 27, 7, 68, 40, 31,
+    115, 124, 42, 128, 52, 71, 118, 117, 38, 27, 106, 33, 117, 116, 111,
+    40, 119, 47, 105, 57, 122, 109, 124, 115, 43, 120, 43, 27, 27, 18,
+    28, 48, 125, 107, 114, 34, 133, 45, 120, 30, 127, 31, 116, 146]
+
+def stemleaf(x):
+    d = OrderedDict((((str(v)[:-1],' ')[v<10], Counter()) for v in sorted(x)))
+    for s in ((str(v),' '+str(v))[v<10] for v in x) : d[s[:-1]][s[-1]]+=1
+    m=max(len(s) for s in d)
+    for k in d:
+        print('%s%s | %s'%(' '*(m-len(k)),k,' '.join(sorted(d[k].elements()))))
+
+stemleaf(x)

Task/Stem-and-leaf-plot/Python/stem-and-leaf-plot-3.py

@@ -0,0 +1,37 @@
+from itertools import (groupby)
+from functools import (reduce)
+
+
+# stemLeaf :: (String -> Int) -> (String -> String) -> String -> String
+def stemLeaf(f, g, s):
+    return '\n'.join(map(
+        lambda x: str(x[0]).rjust(2) + ' | ' +
+        reduce(lambda a, tpl: a + tpl[1] + ' ', x[1], ''),
+        (groupby(sorted(
+            map(lambda x: (f(x), g(x)), s.split())
+        ),
+            lambda x: x[0]
+        ))
+    ))
+
+
+# main :: IO()
+def main():
+    def stem(s):
+        return (lambda x=s[:-1]: int(x) if 0 < len(x) else 0)()
+
+    def leaf(s):
+        return s[-1]
+
+    s = ('12 127 28 42 39 113 42 18 44 118 44 37 113 124 37 48 127 36 29 31'
+         ' 125 139 131 115 105 132 104 123 35 113 122 42 117 119 58 109 23'
+         ' 105 63 27 44 105 99 41 128 121 116 125 32 61 37 127 29 113 121 58'
+         ' 114 126 53 114 96 25 109 7 31 141 46 13 27 43 117 116 27 7 68 40'
+         ' 31 115 124 42 128 52 71 118 117 38 27 106 33 117 116 111 40 119 47'
+         ' 105 57 122 109 124 115 43 120 43 27 27 18 28 48 125 107 114 34 133'
+         ' 45 120 30 127 31 116 146')
+
+    print (stemLeaf(stem, leaf, s))
+
+
+main()