cf.Data.get_deterministic_name

Data.get_deterministic_name()[source]

Get the deterministic name for the data.

If there is a deterministic name then the data array may be assumed to be ‘equal’ to that of another Data object with the same deterministic name. This measure of equality is different to that applied by the equals method in that NaN and inf values are, in effect, always considered equal.

Note that the opposite is not always true. Two Data objects that are considered equal by their equals methods might not have the same deterministic name.

An exception is raised if there is no deterministic name.

New in version 3.15.1.

See also

has_deterministic_name

Returns
str

The deterministic name.

Examples

>>> d = cf.Data([1, 2, 3], 'm')
>>> d.has_deterministic_name()
True
>>> d.get_deterministic_name()
'6380dd3674fbf10d30561484b084e9b3'
>>> d1 = cf.Data([1, 2, 3], 'metre')
>>> d1.get_deterministic_name()
'6380dd3674fbf10d30561484b084e9b3'
>>> d1.get_deterministic_name() == d.get_deterministic_name()
True
>>> d1.equals(d)
True

>>> e = d + 1 - 1
>>> e.get_deterministic_name()
'0b83ada62d4b014bae83c3de1c1d3a80'
>>> e.get_deterministic_name() == d.get_deterministic_name()
False
>>> e.equals(d)
True