WOLFRAM

Wolfram Language & System Documentation Center
Wolfram Language Home Page »

OutputPorts
Copy to clipboard.
✖
OutputPorts

[Experimental]

Copy to clipboard.
✖

is an option to specify the number, names or shapes of output ports for some neural net layers.

Details

  • OutputPorts is typically used in PlaceholderLayer.
  • Typical settings for OutputPorts include:
  • Automaticinfer number of ports and their shapes from NetChain or NetGraph connectivity
    nn ports with default names and unspecified shapes
    {"name1","name2",…}explicit port names with unspecified shapes
    {shape1,shape2,…}default port names with specified shapes or encoders
    <|"name1"shape1,…|>explicit port names with specified shapes or encoders
  • Shape specifications for each port include:
  • "Real"a single real number
    "Integer"a single integer
    Restricted["Integer",n]an integer between 1 and n
    na vector of length n
    {n1,n2,…}an array of dimensions n1×n2×…
    "Varying"a vector whose length is variable
    {"Varying",n2,n3,…}an array whose first dimension is variable and remaining dimensions are n2×n3×…
    NetDecoder[…]a decoder

Examples

open allclose all

Basic Examples  (1)Summary of the most common use cases

By default, PlaceholderLayer has a single output port:

Copy to clipboard.
In[1]:=1
✖
https://wolfram.com/xid/0h2qq7i0s0-s6k75x
Direct link to example
Out[1]=1

Use OutputPorts to create a PlaceholderLayer with three ports having default names and unspecified shapes:

Copy to clipboard.
In[2]:=2
✖
https://wolfram.com/xid/0h2qq7i0s0-n3nbnj
Direct link to example
Out[2]=2

Scope  (3)Survey of the scope of standard use cases

Create a PlaceholderLayer with two outputs having explicit names and unspecified shapes:

Copy to clipboard.
In[1]:=1
✖
https://wolfram.com/xid/0h2qq7i0s0-d4i537
Direct link to example
Out[1]=1

Create a PlaceholderLayer with four outputs having default names and specified shapes:

Copy to clipboard.
In[1]:=1
✖
https://wolfram.com/xid/0h2qq7i0s0-590dvk
Direct link to example
Out[1]=1

Create a PlaceholderLayer with two outputs having explicit names and specified shapes:

Copy to clipboard.
In[1]:=1
✖
https://wolfram.com/xid/0h2qq7i0s0-5fp2ju
Direct link to example
Out[1]=1
Wolfram Research (2020), OutputPorts, Wolfram Language function, https://reference.wolfram.com/language/ref/OutputPorts.html.
Copy to clipboard.
✖
Wolfram Research (2020), OutputPorts, Wolfram Language function, https://reference.wolfram.com/language/ref/OutputPorts.html.

Text

Wolfram Research (2020), OutputPorts, Wolfram Language function, https://reference.wolfram.com/language/ref/OutputPorts.html.

Copy to clipboard.
✖
Wolfram Research (2020), OutputPorts, Wolfram Language function, https://reference.wolfram.com/language/ref/OutputPorts.html.

CMS

Wolfram Language. 2020. "OutputPorts." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/OutputPorts.html.

Copy to clipboard.
✖
Wolfram Language. 2020. "OutputPorts." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/OutputPorts.html.

APA

Wolfram Language. (2020). OutputPorts. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/OutputPorts.html

Copy to clipboard.
✖
Wolfram Language. (2020). OutputPorts. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/OutputPorts.html

BibTeX

@misc{reference.wolfram_2025_outputports, author="Wolfram Research", title="{OutputPorts}", year="2020", howpublished="\url{https://reference.wolfram.com/language/ref/OutputPorts.html}", note=[Accessed: 26-March-2025 ]}

Copy to clipboard.
✖
@misc{reference.wolfram_2025_outputports, author="Wolfram Research", title="{OutputPorts}", year="2020", howpublished="\url{https://reference.wolfram.com/language/ref/OutputPorts.html}", note=[Accessed: 26-March-2025 ]}

BibLaTeX

@online{reference.wolfram_2025_outputports, organization={Wolfram Research}, title={OutputPorts}, year={2020}, url={https://reference.wolfram.com/language/ref/OutputPorts.html}, note=[Accessed: 26-March-2025 ]}

Copy to clipboard.
✖
@online{reference.wolfram_2025_outputports, organization={Wolfram Research}, title={OutputPorts}, year={2020}, url={https://reference.wolfram.com/language/ref/OutputPorts.html}, note=[Accessed: 26-March-2025 ]}