Sparse vector toLibSvm API

[Debasish Das]

Hi,

In the sparse vector the toString API is as follows:

 override def toString: String = {

    "(" + size + "," + indices.zip(values).mkString("[", "," ,"]") + ")"

  }

Does it make sense to keep it consistent with libsvm format ?

What does each line of libsvm format looks like ?

Thanks.

Deb