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tfestimators (version 1.9.2)

numpy_input_fn: Construct Input Function Containing Python Dictionaries of Numpy Arrays

Description

This returns a function outputting features and target based on the dict of numpy arrays. The dict features has the same keys as the x.

Usage

numpy_input_fn(
  x,
  y = NULL,
  batch_size = 128,
  num_epochs = 1,
  shuffle = NULL,
  queue_capacity = 1000,
  num_threads = 1
)

Arguments

x

dict of numpy array object.

y

numpy array object. NULL if absent.

batch_size

Integer, size of batches to return.

num_epochs

Integer, number of epochs to iterate over data. If NULL will run forever.

shuffle

Boolean, if TRUE shuffles the queue. Avoid shuffle at prediction time.

queue_capacity

Integer, size of queue to accumulate.

num_threads

Integer, number of threads used for reading and enqueueing. In order to have predicted and repeatable order of reading and enqueueing, such as in prediction and evaluation mode, num_threads should be 1. #'

Raises

ValueError: if the shape of y mismatches the shape of values in x (i.e., values in x have same shape). TypeError: x is not a dict or shuffle is not bool.

Details

Note that this function is still experimental and should only be used if necessary, e.g. feed in data that's dictionary of numpy arrays.

See Also

Other input functions: input_fn()