Table Of Contents
Table Of Contents

mxnet.gluon.nn.Lambda

class mxnet.gluon.nn.Lambda(function, prefix=None)[source]

Wraps an operator or an expression as a Block object.

Parameters
  • function (str or function) –

    Function used in lambda must be one of the following: 1) the name of an operator that is available in ndarray. For example:

    block = Lambda('tanh')
    
    1. a function that conforms to def function(*args). For example:

      block = Lambda(lambda x: nd.LeakyReLU(x, slope=0.1))
      

  • Inputs

    • ** args *: one or more input data. Their shapes depend on the function.

  • Output

    • ** outputs *: one or more output data. Their shapes depend on the function.

__init__(function, prefix=None)[source]

Initialize self. See help(type(self)) for accurate signature.

Methods

__init__(function[, prefix])

Initialize self.

apply(fn)

Applies fn recursively to every child block as well as self.

cast(dtype)

Cast this Block to use another data type.

collect_params([select])

Returns a ParameterDict containing this Block and all of its children’s Parameters(default), also can returns the select ParameterDict which match some given regular expressions.

forward(*args)

Overrides to implement forward computation using NDArray.

hybridize([active])

Activates or deactivates HybridBlock s recursively.

initialize([init, ctx, verbose, force_reinit])

Initializes Parameter s of this Block and its children.

load_parameters(filename[, ctx, …])

Load parameters from file previously saved by save_parameters.

load_params(filename[, ctx, allow_missing, …])

[Deprecated] Please use load_parameters.

name_scope()

Returns a name space object managing a child Block and parameter names.

register_child(block[, name])

Registers block as a child of self.

register_forward_hook(hook)

Registers a forward hook on the block.

register_forward_pre_hook(hook)

Registers a forward pre-hook on the block.

save_parameters(filename)

Save parameters to file.

save_params(filename)

[Deprecated] Please use save_parameters.

summary(*inputs)

Print the summary of the model’s output and parameters.

Attributes

name

Name of this Block, without ‘_’ in the end.

params

Returns this Block’s parameter dictionary (does not include its children’s parameters).

prefix

Prefix of this Block.