PrependLayer

represents a net layer that takes an input array and prepends another array to it.

Details and Options

PrependLayer exposes the following input ports for use in NetGraph etc.:
"Input" array of rank n

"Element" array of rank n-1
PrependLayer exposes the output port "Output", which is an array of rank n.
PrependLayer is typically used inside NetGraph.
PrependLayer can operate on arrays that contain "Varying" dimensions.
PrependLayer[…][<|"Input"in,"Element"elem|>] explicitly computes the output from applying the layer, which is effectively given by Prepend[in,elem].
When given a NumericArray as input, the output will be a NumericArray.
PrependLayer["port"->shape] allows the shape of the input or element port to be specified. Possible forms for shape are:

	"Real"	a single real number
	"Integer"	a single integer
	n	a vector of length n
	{n₁,n₂,…}	an array of dimensions n₁× n₂×…
	{"Varying",n₂,n₃,…}	a variable-length sequence of arrays of dimensions n₂×n₃×…

Options[PrependLayer] gives the list of default options to construct the layer. Options[PrependLayer[…]] gives the list of default options to evaluate the layer on some data.
Information[PrependLayer[…]] gives a report about the layer.
Information[PrependLayer[…],prop] gives the value of the property prop of PrependLayer[…]. Possible properties are the same as for NetGraph.

open allclose all

Create a PrependLayer that takes a vector as input and appends a scalar:

Apply this layer to inputs:

Create a PrependLayer that takes a sequence of vectors as input and appends another vector to it:

Apply this layer to inputs:

Apply this layer to a batch of inputs with "Varying" size:

Top

	"Input"	array of rank n
	"Element"	array of rank n-1