Make Storage:dateset_length able to handle non multidimensional arrays
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@ -62,6 +62,7 @@ module Rubella
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#
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#
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def dataset_length
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def dataset_length
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return 0 if self.length == 0
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return 0 if self.length == 0
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return 1 unless @data[0].respond_to? "length"
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@data[0].length
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@data[0].length
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end
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end
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