.. _`F(x)`:

.. _`org.sysess.sympathy.data.fx`:

F(x)
~~~~

.. image:: fx.svg
   :width: 48


Apply functions to an item.

Functions based on Fx will be invoked once on the item.
The functions available are the ones where ``arg_types`` of the function
matches the type of the item port (port2).

:Ref. nodes: :ref:`F(x) List`

*Input ports*:
    :port1: datasource

        Path to Python file with scripted functions.
    :port2: <a>

        Item with data to apply functions on

*Output ports*:
    :port3: <a>

        Item with the results from the applied functions

*Configuration*:
    **Copy input** (copy_input)
        If enabled the incoming data will be copied to the output before running the nodes.
    **Select functions** (selected_functions)
        Choose one or many of the listed functions to apply to the content of the incoming item.
    **Python code** (code)
        Python code block, input is called arg, output res.

.. automodule:: node_fx_selector

.. class:: Fx


Example flows
#############

* :download:`Functions.syx </_examples/Sympathy/Data Processing/Calculate/Functions.syx>`