Create input for network

It creates an input in the network: a place where data, such as features and labels, should be provided.

op_input_variable(shape, dtype = "float32", needs_gradient = FALSE,
  is_sparse = FALSE, dynamic_axes = c(get_default_batch_axis()),
  name = "")

Arguments

shape	- list of ints representing tensor shape integer vector for dimensions of input tensor
needs_gradient	logical whether to conduct backprop on the tensor
is_sparse	logical whether variable is sparse
dynamic_axes	list of dynamic axis (only a single axis can be dynamic, i.e., either batch axis or time axis)