cfdm.Count

---

class cfdm.Count(properties=None, data=None, source=None, copy=True, _use_data=True)

Bases: cfdm.mixin.netcdf.NetCDFVariable, cfdm.mixin.netcdf.NetCDFDimension, cfdm.mixin.netcdf.NetCDFSampleDimension, cfdm.mixin.propertiesdata.PropertiesData, cfdm.core.abstract.propertiesdata.PropertiesData

A count variable required to uncompress a ragged array.

A collection of features stored using a contiguous ragged array combines all features along a single dimension (the sample dimension) such that each feature in the collection occupies a contiguous block.

The information needed to uncompress the data is stored in a count variable that gives the size of each block.

NetCDF interface

The netCDF variable name of the count variable may be accessed with the nc_set_variable, nc_get_variable, nc_del_variable and nc_has_variable methods.

The name of the netCDF dimension spanned by the count variable’s data may be accessed with the nc_set_dimension, nc_get_dimension, nc_del_dimension and nc_has_dimension methods.

The name of the netCDF sample dimension spanned by the compressed data (that is stored in the “sample_dimension” netCDF attribute and which does not correspond to a domain axis construct) may be accessed with the nc_set_sample_dimension, nc_get_sample_dimension, nc_del_sample_dimension and nc_has_sample_dimension methods.

New in version 1.7.0.

Initialization

Parameters:

properties: dict, optional

Set descriptive properties. The dictionary keys are property names, with corresponding values. Ignored if the source parameter is set.

Parameter example:

properties={'long_name': 'number of obs for this station'}

Properties may also be set after initialisation with the set_properties and set_property methods.

data: Data, optional

Set the data array. Ignored if the source parameter is set.

The data array may also be set after initialisation with the set_data method.

source: optional

Initialize the properties and data from those of source.

copy: bool, optional

If False then do not deep copy input parameters prior to initialization. By default arguments are deep copied.

Inspection

Methods

dump	A full description of the count variable.
identity	Return the canonical identity.
identities	Return all possible identities.

Properties

Methods

del_property	Remove a property.
get_property	Return a property.
has_property	Whether a property has been set.
set_property	Set a property.
properties	Return all properties.
clear_properties	Remove all properties.
set_properties	Set properties.

Data

Methods

del_data	Remove the data.
get_data	Return the data.o
has_data	Whether a data has been set.
set_data	Set the data.
insert_dimension	Expand the shape of the data array.
squeeze	Remove size one axes from the data array.
transpose	Permute the axes of the data array.

Attributes

data	Return the data.

Miscellaneous

Methods

copy	Return a deep copy.
equals	Whether two instances are the same.

NetCDF

Methods

nc_del_variable	Remove the netCDF variable name.
nc_get_variable	Return the netCDF variable name.
nc_has_variable	Whether the netCDF variable name has been set.
nc_set_variable	Set the netCDF variable name.
nc_del_sample_dimension	Remove the netCDF sample dimension name.
nc_get_sample_dimension	Return the netCDF sample dimension name.
nc_has_sample_dimension	Whether the netCDF sample dimension name has been set.
nc_set_sample_dimension	Set the netCDF sample dimension name.
nc_del_dimension	Remove the netCDF dimension name.
nc_get_dimension	Return the netCDF dimension name.
nc_has_dimension	Whether the netCDF dimension name has been set.
nc_set_dimension	Set the netCDF dimension name.

Special

Methods

__deepcopy__	Called by the copy.deepcopy function.
__getitem__	Return a subspace defined by indices
__repr__	Called by the repr built-in function.
__str__	Called by the str built-in function.