source: orange/docs/tutorial/rst/code/domain6.py @ 9374:59bac7ddd8a2

Revision 9374:59bac7ddd8a2, 747 bytes checked in by mitar, 2 years ago (diff)

Tutorial documentation structure.

Line 
1# Description: Shows how to use Filter_sameValues for instance selection
2# Category:    preprocessing
3# Uses:        imports-85
4# Classes:     
5# Referenced:  domain.htm
6
7import orange
8
9def report_prob(header, data):
10  print 'Size of %s: %i instances; ' % (header, len(data)), 
11  n = 0
12  for i in data:
13    if int(i.getclass())==0:
14      n = n + 1
15  if len(data):
16    print "p(%s)=%5.3f" % (data.domain.classVar.values[0], float(n)/len(data))
17  else:
18    print
19
20filename = "../../datasets/adult_sample.tab"
21data = orange.ExampleTable(filename)
22report_prob('data', data)
23
24data1 = data.select(age=(30,40))
25report_prob('data1, age from 30 to 40', data1)
26
27data2 = data.select(age=(40,30))
28report_prob('data2, younger than 30 or older than 40', data2)
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