ncmeta provides a consistent set of tools to obtain metadata from NetCDF. NetCDF
is 'Network Common Data Form' https://www.unidata.ucar.edu/software/netcdf/.
These functions are generics, allowing methods to be written for various providers so that
everything can work from a common basis. All functions return a data frame.
Each function responds to a character file name or data source (i.e. URL) or to a connection of a given class, this is so a source connection may be created a minimal number of times and kept open while a number of entities are queried.
Each "given" entity may be referred to by index (0-based) or name, just as it would be by the NetCDF
API and by the two R wrapper providers RNetCDF and ncdf4.
nc_att |
find the given attribute of a given variable |
nc_atts |
find all attributes, of all variables and globals |
nc_axes |
find all the instances of dimensions |
nc_axis |
find given instance of a dimension (1-based) |
nc_dim |
find the given dimension of a source (0-based) |
nc_dims |
find all the dimensions of a source |
nc_grids |
find the grids (sets of dimensions) of a source |
nc_inq |
inquire about a source (i.e. number of dimensions, number of variables, number of global attributes and presence of unlimited dimension |
nc_meta |
find all metadata for a source (runs all other functions) |
nc_sources |
tags a record of a source and its "access time" |
nc_var |
find a given variable (0-based) |
nc_vars |
find the variables of a source |