Manifold dimension in rmetric computation

[sjkoelle]

In the riemann_metric() method, n_dim is used to iterate over embedding dimensions (line 62-65). However, n_dim, when inherited from mdimG through the get_dual_rmetric() method, refers to the manifold dimension. Therefore, I think that iteration over embedding dimensions in metric computation should be done using mdimY and mdimG should be used to select a subset of singular values.