ExpectColumnValuesToBeNull
===========



Type
--------- 

transform

Class
--------- 

fire.nodes.ge.NodeExpectColumnValuesToBeNull

Fields
--------- 

.. list-table::
      :widths: 10 5 10
      :header-rows: 1

      * - Name
        - Title
        - Description
      * - cols
        - Column Name
        - The column name.
      * - mostly
        - Mostly
        - Mostly value is between 0 and 1, and evaluates it as a percentage and as long as mostly percent of rows evaluate to True, the expectation returns “success”: True.


Details
-------
Expect Column Values To Be Null Details
+++++++++++++++


Expect the column values to be null.



Keyword Args
+++++++++++++++


Column Name: The column name

Mostly (None or a float between 0 and 1): Return `success`: True if at least mostly fraction of values match the expectation.


Examples
-------
Example
+++++++++++++++



Incoming Dataframe
+++++++++++++++


In this example we have considered a Incoming Dataframe with following rows:


::

    EMP_CD    |    DEPT        |
    --------------------------------------
    E01       |                |
    E02       |                |
    E03       |                |
    E04       |                |



Configuration #1
+++++++++++++++


::

    Column Name   | Mostly  |
    -------------------------
    EMP_CD        |         |


The above setup would result in a status of `success: false` as the condition is not satisfied.



Configuration #2
+++++++++++++++


::

    Column Name   | Mostly  |
    -------------------------
    DEPT        |   0.9     |


The above setup would result in a status of `success: true` as the condition is satisfied.