# Legacy API reference

This page provides an auto-generated summary of h5netcdf’s legacy API.

`Dataset`(path[, mode, invalid_netcdf, phony_dims]) |
`Dataset.createGroup`(name) | Create NetCDF4 group.
`Dataset.createDimension`(name, size) | Creates a new dimension with given name and size.
`Dataset.createVariable`(varname, datatype[, ...]) | Creates a new variable.
`Group`(parent, name) |
`Dimension`(parent, name[, size, create_h5ds, ...]) |
`Variable`(parent, name[, dimensions]) |
`CompoundType`(parent, name) |
`EnumType`(parent, name) |
`VLType`(parent, name) |