• New function nc_extended() to enerate a table of extended dimension attributes, supporting ‘time’ currently (contributed by Patrick Van Laake).
  • Fixed namespace doc thanks to CRAN.
  • Removed LazyData, unused.

  • Extra info now provided by RNetCDF was causing non-nested data frame problems, fixed by PR from @mjwoods in #44 and #45.

  • Changed default branch name to “main”, so please check if you have a fork and submit PRs.

  • Fix bug where Scalar variables were treated as an axis. Picked up in stars PR #399.

  • Fix file path mangling introduced in #27.
  • Improved equivalence test thanks to Romain Francois #37.
  • Extra checks and fixes to align with stars, and a future release of RNetCDF.

  • Condition on version of tidyr for new nest() syntax > 0.8.3.

  • The output of nc_atts() is now more consistent, with the same structure given for only global attributes, or a mix of variable attributes and global attributes. If there are no attributes at all the output has zero rows, but now has the correct column types.

  • nc_grids() now normal form, with nested variables so we can easily link grids to variables.

  • New functions nc_coord_var to find coordinate variables (if any), gm_to_prj to determine PROJ string in use, and nc_grid_mapping_atts to determine grid mapping parameters; #19, #14, #12, #9.

  • Fix for grid organization providing variables out of native order.

  • Added ‘variable’ argument to ‘nc_atts’, per #8.

  • added some extra checks for bad source strings, particularly the empty string to prevent crashing (this happens with system.file() where the file does not exist)
  • fix attribute types problem

*updates from CRAN feedback

  • ncmeta now provides support for dimensions that do not have explicit coordinates: dimension and variable tables now have information about “dimvals”, in the form of “dim_coord” and “coord_dim” i.e. if a variable is 1D and its name corresponds to a dimension name, then it is a rectlinear coordinate vector of that dimension. (The coordinates can be of type “char”, and that must be dealt with down stream as it now is in tidync).

  • new function nc_grids, the spaces available to variables

  • new function nc_axes, nc_axis for the instances of dimensions

  • nc_vars now returns only variables

  • First working version.