[mlpack-git] [mlpack] Cannot create NeighborSearch for arma:fmat MatType (#506)

[Victor]

I cannot declare type:
```C++
using KnnModel = mlpack::neighbor::NeighborSearch<mlpack::neighbor::NearestNeighborSort,
                                                  mlpack::metric::ManhattanDistance,
                                                  arma::fmat,
                                                  mlpack::tree::KDTree>;
```

error:
```
/usr/include/mlpack/core/tree/hrectbound_implhpp:372:30: 
error: no matching function for call to 
‘arma::Col<double>::Col(const arma::Op<arma::subview<float>, arma::op_min>)’
   arma::vec mins(min(data, 1));
```

Is threre no implementation for float or I'm doing something wrong?

---
Reply to this email directly or view it on GitHub:
https://github.com/mlpack/mlpack/issues/506
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