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remove NA alternatives before calculating probabilities #93

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bstabler opened this issue May 20, 2016 · 1 comment
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remove NA alternatives before calculating probabilities #93

bstabler opened this issue May 20, 2016 · 1 comment
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@toliwaga
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Phase 2: Addition...

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@bstabler
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In a choice model, if an alternative is not available, then it needs to be removed from the alternative set before calculating the probabilities for each available alternative. An alternative will be deemed to be not available if one of the expressions evaluates to the global NA value. This issue is discussed in more detail in #81.
@bstabler bstabler mentioned this issue May 20, 2016
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@bstabler bstabler changed the title remove NA alternatives remove NA alternatives before calculating probabilities May 20, 2016
@toliwaga
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I think it is sufficient simply to set its probability to zero?

@toliwaga toliwaga mentioned this issue Nov 3, 2016
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@toliwaga @danielsclint @bstabler