#9670: Bring probability/random_variable.py to 100% coverage
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Reporter: kcrisman | Owner: mvngu
Type: enhancement | Status: new
Priority: major | Milestone: sage-5.0
Component: documentation | Keywords:
Work_issues: | Upstream: N/A
Reviewer: | Author:
Merged: | Dependencies:
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Comment(by was):
Kohel's examples above are a mess. Here's something that actually works:
{{{
sage: n=6
sage: S = list('abcdef')
sage: P = dict([(S[i-1],1/n) for i in [1..n]])
sage: X = DiscreteProbabilitySpace(S, P)
sage: X.expectation()
0.166666666666667
sage: f = dict([(S[i],i+1) for i in range(n)])
sage: F = DiscreteRandomVariable(X,f)
sage: F.expectation()
3.50000000000000
}}}
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9670#comment:8>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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