# Make Chart

This is a sample Python 3 script that generates a chart a few different ways.

### Getting the project

You can get a copy of this project by clicking on the [ZIP](http://git.dlma.com/make_chart.git/zipball/main)
or [TAR](http://git.dlma.com/make_chart.git/tarball/main) buttons near the top right of the GitList web page.

You can clone from the origin with:

    git clone ssh://USERNAME@dlma.com/~/git/make_chart.git

### What Does it Do?

You specify one of four renderers, and it analyzes (currently) some hardcoded data..

* **none**: Summary only, just print the mean, median, and standard deviation.
* **gnuplot**: (default) Print an ASCII art graph.
* **matplotlib**: Create a PNG file suitable for static reports and email.
* **google**: A Google chart webpage with responsive features.

Here's the help text:

    usage: make_chart.py [-h] [-r {none,gnuplot,matplotlib,google}]

    Makes histograms from raw samples or prepared buckets.

    optional arguments:
      -h, --help            show this help message and exit
      -r {none,gnuplot,matplotlib,google}, --renderer {none,gnuplot,matplotlib,google}
                            Choose a renderer: summary only, text, png, or
                            webpage.

#### Example text rendering

    40 +-------------------------------------------------------+
       |      +  * * +      +      +      +      +      +      |
       |        *  *                            Pizzas ***A*** |
    35 |-+     *    *                                        +-|
       |      A     *                median = 80.00            |
    30 |-+   *       A***            mean = 81.67 sdev=38.09 +-|
       |     *           A**                                   |
       |    *               A***                               |
    25 |-+ A                    A**                          +-|
       |   *                       A***                        |
    20 |-+*                            A**                   +-|
       |  *                                                    |
       | *                                A***                 |
    15 |-*                                    A**            +-|
       | *                                       A***          |
       |*                                            A**       |
    10 |*+                                              A    +-|
       |                                                 *     |
     5 |-+                                                *  +-|
       |                                                   *   |
       |      +      +      +      +      +      +      +   A  |
     0 +-------------------------------------------------------+
       20     40     60     80    100    120    140    160    180

### Is it any good?

[Yes](https://news.ycombinator.com/item?id=3067434).

### To Do

* Make it more general.
* Allow data to be specified different ways.
* Support other chart types.