Enable missing values in instances #5
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Passing only an Integer n on instantiation will create an intance with n missing values. Missing values are returned as '?'.
Missing values can be written as '?', nil, or Float::NAN, e.g. instances.add_instance([:sunny, Float::NAN, 91, nil, '?']) will output ['sunny', '?', 91.0, '?', '?'] as the instance values.
paulgoetze
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Feb 3, 2016
…alues Enable missing values in instances
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Allows creating
Weka::Core::DenseInstanceobjects by instantiation with just an integer (additionally to the initializer with a data array and the weight):creates an instance with 5 missing values.
Fixes internal type casting of allowed missing values (
'?',nil, andFloat::NAN) in an Attribute in order to allow adding instances with missing values: