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1 | !7 |
2 | |
3 | lib 1010869 // decision trees |
4 | lib 1004016 // slf4j |
5 | lib 1004015 // slf4j simple |
6 | |
7 | import dt.DecisionTree; |
8 | import dt.UnknownDecisionException; |
9 | |
10 | p {
|
11 | //DecisionTree tree = makeOutlookTree(); |
12 | testOutlookOvercastApplyReturnsTrue(); |
13 | testUnknownDecisionThrowsException(); |
14 | print("OK");
|
15 | } |
16 | |
17 | static void testOutlookOvercastApplyReturnsTrue() ctex {
|
18 | SS case1 = lithashmap( |
19 | "Outlook", "Overcast", |
20 | "Temperature", "Hot", |
21 | "Humidity", "High", |
22 | "Wind", "Strong"); |
23 | assertTrue(makeOutlookTree().apply(case1)); |
24 | } |
25 | |
26 | static void testUnknownDecisionThrowsException() {
|
27 | DecisionTree tree = new DecisionTree().setAttributes(new String[]{"Outlook"})
|
28 | .setDecisions("Outlook", new String[]{"Sunny", "Overcast"});
|
29 | |
30 | try {
|
31 | tree.addExample(new String[]{"Rain"}, false);
|
32 | fail("no exception");
|
33 | } catch (UnknownDecisionException e) {
|
34 | // ok |
35 | } |
36 | } |
37 | |
38 | static DecisionTree makeOutlookTree() {
|
39 | try {
|
40 | // example data from http://www.cise.ufl.edu/~ddd/cap6635/Fall-97/Short-papers/2.htm |
41 | |
42 | return new DecisionTree().setAttributes(new String[]{"Outlook", "Temperature", "Humidity", "Wind"})
|
43 | .addExample( new String[]{"Sunny", "Hot", "High", "Weak"}, false)
|
44 | .addExample( new String[]{"Sunny", "Hot", "High", "Strong"}, false)
|
45 | .addExample( new String[]{"Overcast", "Hot", "High", "Weak"}, true)
|
46 | .addExample( new String[]{"Rain", "Mild", "High", "Weak"}, true)
|
47 | .addExample( new String[]{"Rain", "Cool", "Normal", "Weak"}, true)
|
48 | .addExample( new String[]{"Rain", "Cool", "Normal", "Strong"}, false)
|
49 | .addExample( new String[]{"Overcast", "Cool", "Normal", "Strong"}, true)
|
50 | .addExample( new String[]{"Sunny", "Mild", "High", "Weak"}, false)
|
51 | .addExample( new String[]{"Sunny", "Cool", "Normal", "Weak"}, true)
|
52 | .addExample( new String[]{"Rain", "Mild", "Normal", "Weak"}, true)
|
53 | .addExample( new String[]{"Sunny", "Mild", "Normal", "Strong"}, true)
|
54 | .addExample( new String[]{"Overcast", "Mild", "High", "Strong"}, true)
|
55 | .addExample( new String[]{"Overcast", "Hot", "Normal", "Weak"}, true)
|
56 | .addExample( new String[]{"Rain", "Mild", "High", "Strong"}, false);
|
57 | |
58 | } catch (UnknownDecisionException e) {
|
59 | throw rethrow(e); |
60 | } |
61 | } |
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| Snippet ID: | #1010870 |
| Snippet name: | Test decision trees [OK] |
| Eternal ID of this version: | #1010870/8 |
| Text MD5: | de57a93efd095b9c0e7888e3cee54701 |
| Transpilation MD5: | 3155601a62cb78a050d54ad97194e089 |
| Author: | stefan |
| Category: | javax / a.i. |
| Type: | JavaX source code (desktop) |
| Public (visible to everyone): | Yes |
| Archived (hidden from active list): | No |
| Created/modified: | 2017-10-05 00:57:50 |
| Source code size: | 2704 bytes / 61 lines |
| Pitched / IR pitched: | No / No |
| Views / Downloads: | 350 / 872 |
| Version history: | 7 change(s) |
| Referenced in: | [show references] |