WRFILE
------


.. figure:: ../media/image1039.png
   :figwidth: 2.66667in
   :align: center 

**Purpose**

Write values to a file.

Mathematical description

None

**Parameters** 

+---------------+---------+------+---------+---------+-----------------------------------------------------------+
| Parameter     | input   | unit | range   | default | remarks                                                   |
+===============+=========+======+=========+=========+===========================================================+
| CASE_O###.csv | integer | [-]  | [0,999] |         | Number which gets appended to the casename                |
+---------------+---------+------+---------+---------+-----------------------------------------------------------+
| Time unit     | ms/     |      |         |         |                                                           |
|               |         |      |         |         |                                                           |
|               | s/      |      |         |         |                                                           |
|               |         |      |         |         |                                                           |
|               | min/    |      |         |         |                                                           |
|               |         |      |         |         |                                                           |
|               | hr      |      |         |         |                                                           |
+---------------+---------+------+---------+---------+-----------------------------------------------------------+
| Output incr   | integer | [-]  |         |         | Output written every ‘output incr’ time-steps to the file |
+---------------+---------+------+---------+---------+-----------------------------------------------------------+

**Remarks** 

The WRFILE component can be used to write results to a file, which can be read into a WANDA model or spreadsheet program at a later stage. The comment field of the WRFILE component will be used as a header in the output file.

The output file will be placed in the same directory as the Wanda case files. The name of the file will have the following format: <casename>_O###.csv. Where <casename> is the full name of the Wanda casefiles (without extension) and ### is the number entered in the component properties.

**Examples** 

Figure 1 presents an example where the WRFILE component is used. The product of two different signals (a sine and a polynome) is written to a case related file with output number 48. The simulation time step is 1 s.

.. figure:: ../media/image1040.png
   :figwidth: 2.97917in
   :align: center 

   Control scheme

The input of the WRFILE component is:

-  Name: W1

-  Comment: product sine*poly

-  CASE_O###.csv: 48

-  Time unit: s

-  Output incr: 5

The WRFILE component writes the result of the multiplication of the two input signals to a file named “MyCase_O048.csv”. This file can be opened with any text editor or spreadsheet.

.. figure:: ../media/image1041.png
   :figwidth: 2.77083in
   :align: center

   Input signals

.. figure:: ../media/image1042.png
   :figwidth: 2.77083in
   :align: center

   Input signals after multiplication


The created file “MyCase_048.csv” contains two columns: The first column specifies the time, while the second column specifies the values given to the WRFILE component. The complete contents of the file “MyCase_048.csv” is shown below:

============= =================
# Time [s]    product sine*poly
0.0000000E+00 0.0000000E+00
5.000000      42.07355
10.00000      -280.6266
15.00000      -1131.633
20.00000      7825.173
============= =================

.. _examples-1:

.. include:: substitutions_control.rst