NetTake

takes only those layers up to end in a NetChain or NetGraph.

NetTake[net,{start,end}]

takes only those layers between start and end in a NetChain or NetGraph.

Details

	n,"layer"	a specified layer
	NetPort[{layer,"port"}]	the specified input or output port of a layer
	NetPort["port"]	an input or output port of the entire graph
	All	all of the inputs or outputs of the graph
	{spec₁,spec₂,…}	the union of the spec_i

NetTake[net,spec,"port₁"->spec₁,…] can be used to give types for the input and/or output of the resulting NetChain or NetGraph, using the normal type specifications those functions allow. The new port specifications will replace any existing NetEncoder, NetDecoder or type.

open allclose all

Take the first two layers of a chain:

Take layers 2 through 4:

Create a net with two outputs:

Use NetTake to obtain a subnet that computes only one of the outputs:

Add a new NetDecoder while taking layers:

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