@@ -0,0 +1,51 @@
1+from functools import reduce
2+from operator import mul
3+
4+from flask_babel import gettext
5+
6+keywords = ('min',
7+ 'max',
8+ 'avg',
9+ 'sum',
10+ 'prod')
11+
12+
13+# required answerer function
14+# can return a list of results (any result type) for a given query
15+def answer(query):
16+ parts = query.query.split()
17+
18+ if len(parts) < 2:
19+ return []
20+
21+ try:
22+ args = map(float, parts[1:])
23+ except:
24+ return []
25+
26+ func = parts[0]
27+ answer = None
28+
29+ if func == 'min':
30+ answer = min(args)
31+ elif func == 'max':
32+ answer = max(args)
33+ elif func == 'avg':
34+ answer = sum(args)/len(args)
35+ elif func == 'sum':
36+ answer = sum(args)
37+ elif func == 'prod':
38+ answer = reduce(mul, args, 1)
39+
40+ if answer is None:
41+ return []
42+
43+ return [{'answer': unicode(answer)}]
44+
45+
46+# required answerer function
47+# returns information about the answerer
48+def self_info():
49+ return {'name': gettext('Statistics functions'),
50+ 'description': gettext('Compute {functions} of the arguments').format(functions='/'.join(keywords)),
51+ 'examples': ['avg 123 548 2.04 24.2']}