DataFrame: need API to query number of colums without fetching the column

G-Node / nix

Neuroscience information exchange format

https://readthedocs.org/projects/nixio/

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DataFrame: need API to query number of colums without fetching the column #808

Open gicmo opened 4 years ago

gicmo commented 4 years ago

It seems only std::vector<Column> DataFrameHDF5::columns() exists, but there should be a way to query the number of cols without fetching the contents.