temporian.EventSet.log

log() -> EventSetOrNode

Calculates the natural logarithm of an EventSet's features.

Can only be used on floating point features.

Example

>>> a = tp.event_set(
...     timestamps=[1, 2, 3, 4, 5],
...     features={"M": [np.e, 1., 2., 10., -1.]},
... )
>>> a.log()
indexes: ...
        timestamps: [1. 2. 3. 4. 5.]
        'M': [1. 0. 0.6931 2.3026 nan]
...

Returns:

Type	Description
EventSetOrNode	EventSetOr with logarithm of input features.