[mlpack-git] [mlpack/mlpack] DatasetMapper & Imputer (#694)

[Keon Kim]

> +    if (missingSet.count(string) != 0 &&
> +        (maps.count(dimension) == 0 ||
> +         maps[dimension].first.left.count(string) == 0))
> +    {
> +      // This string does not exist yet.
> +      size_t& numMappings = maps[dimension].second;
> +
> +      typedef boost::bimap<std::string, mapped_type>::value_type PairType;
> +      maps[dimension].first.insert(PairType(string, NaN));
> +
> +      ++numMappings;
> +      return NaN;
> +    }
> +    else
> +    {
> +      // This string already exists in the mapping or .

Updated

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