RandomPeriodSampler#

../../_images/RandomPeriodSampler.gif
class torchgeo.samplers.RandomPeriodSampler(dataset, *, freq, length=None, toi=None, generator=None)[source]#

Bases: TemporalSampler

Random sampling of fixed-length fixed windows (Period).

Added in version 0.10.

__init__(dataset, *, freq, length=None, toi=None, generator=None)[source]#

Initialize a new RandomPeriodSampler instance.

Parameters:

  • dataset (GeoDataset) – Dataset to sample from.

  • freq (str) – Temporal frequencies to sample. Accepts any valid period alias.

  • length (int | None) – Number of random samples to draw per epoch (defaults to approximately the maximal number of non-overlapping periods that could be sampled from the dataset).

  • toi (Interval | None) – Time of interest to sample from (defaults to the bounds of dataset.index).

  • generator (int | BitGenerator | Generator | RandomState | SeedSequence | None) – Pseudo-random number generator (PRNG).