cfdm.List

---

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

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

A list variable required to uncompress a gathered array.

Compression by gathering combines axes of a multidimensional array into a new, discrete axis whilst omitting the missing values and thus reducing the number of values that need to be stored.

The information needed to uncompress the data is stored in a list variable that gives the indices of the required points.

NetCDF interface

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

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

Parameter example:

properties={'long_name': 'uncompression indices'}

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 list 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.
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.
get_filenames	Return the name of the file or files containing the data.

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.

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.