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Plot Over Time – Extended

Deskripzioa

I have used Plot Over Time for a long time when found that I needed to put multiple charts on one page and category restrictions. The plugin did not allow it. I am insistent on not needing a new plugin – as this one has worked just fine for me… So, I made changes.

My first change is small in user effort, but large in execution… I added an optional parameter for chart_num. This optional parameter is not needed if you are using the plugin for a single chart page. It is only needed to identify what chart you are making on a multi-chart page…

Single chart on a page…

[plot_ext field1="Heart Rate"]

Multi-Chart page…

[plot_ext field1="Heart Rate" chart_num="1"]
[plot_ext field1="Blood Pressure" chart_num="2"]

Want to see it in action? http://www.ourroadtohealth.com/index.php/data-collection/total-blood-pressure/

My second change… I added an optional parameter for post category restriction. This optional parameter is not needed if you are pulling from all post categories. It is only needed to identify what 1 post category you want to limit the data to…

Single chart on a page with category selection…

[plot_ext field1="Heart Rate" post_cat="8"]

Let’s Get Started:

1. To get it up and running: first, you’ll need to put data in your posts. So, in a post, go to the section under your post called “Custom Fields”. Create a field you want to track (for instance, “Heart Rate”) and give it a value.

2. You’ll need at lest two posts with data in them before the plugin can do it’s thing – so add data to another post.

3. Now that you have at least two posts with data, you can create a post that creates a graph. For this example, you could simply use:

[plot_ext field1="Heart Rate"]

This will go through all posts that have a custom field called “Heart Rate” and plot them on a nice Google Chart Tools LineChart. Plot Over Time – Extended supports up to 10 fields per graph. If you wanted to work with more points of data (again, up to 10), simply add more Custom Fields:

[plot_ext field1="Heart Rate" field2="Weight" field3="Workout Time"]

The legend is automatically added, and each datapoint is able to be clicked to get a callout about it’s datapoint. Or you can move the legend around with legend=”left” or legend=”right”. If you want to get rid of the legend:

[plot_ext field1="Heart Rate" legend="none"]

Types: Valid types chart types for Plot Over Time are: AreaChart, LineChart, PieChart (not particularly useful in this implementation), BarChart, and ColumnChart. To use other types of graphs:

[plot_ext field1="Heart Rate" type="BarChart"]

Height / Width: You can set your own width and height for the chart with Width and Height (default: 400 X 300). Don’t change the height or width using the options=”height: “, instead use height=”300” or similar. Changing it in the options that are passed to the graph won’t change the size of the div it exists in.

[plot_ext field1="Heart Rate" width="500" height="300"] 

Data Limits: By default, Plot Over Time uses ALL data from all posts and pops it onto a graph. You can limit it with two options:

1. You can determine the maximum number of days worth of data (starting from now and going backward) with maxdays. This would show a one month span of data:

[plot_ext field1="Heart Rate" maxdays="30"]

2. You can attach a graph to that post’s published date with usepostdate:

[plot_ext field1="Heart Rate" usepostdate="true"]

So if the post was 3 weeks old, it would only show data from it’s publication date of three weeks ago and older – this allows you to see changes post by post!

Dates: The date format defaults to m/d/y – IE, 12/31/11. You can change it with dateformat. This would instead put 2011-12-31 on the graph:

[plot_ext field1="Heart Rate" dateformat="Y-m-d"]

Titles: This would add a title above your graph that reads “My Graph!”.

[plot_ext field1="Heart Rate" options="'title': 'My Graph!'" chart_num="1"]

Wrapping Up: Don’t like the colors of the graph, or want to add a few new options? No problem – any Google Visualization Tools options is available using the option parameters.

More Info: For more information on the options available visit the Google Chart Tools homepage: http://code.google.com/apis/chart/index.html

Rules:

1. If you define 5 fields you want to read from, and a post only had four fields? It’s going to ignore you.

2. It doesn’t do data interpolation. If there’s a gap in your data, it simply ignores it – it doesn’t give it a “0”, it just plain doesn’t plot it. (That’s how he wanted it. Other opinions may differ – mine does not.)

3. f you tell it you want to see 30 days of data, and you’ve only got three days of data in your posts? It’s only going to show a graph that spans three days.

All data integrity is up to you.

If you download, please rate the plugin. This is one of the few feedback methods available. If you have a low opinion, please allow me to try to fix it first before leaving a bad review.

Pantaila-argazkiak

  • Example of AreaGraph formatted data
  • Example of LineChart formatted data
  • Example of the PieChart formatted data

Instalazioa

  1. Download the Plot Over Time plugin and you will get a directory called “plot_ext” when you unzip the downloaded file. Upload the “plot_ext” directory to your WordPress plugin’s directory (e.g. /wp-content/plugins/)
  2. Activate the plugin through the ‘Plugins’ menu in the WordPress dashboard.

MEG

Is it possible to go beyond the 10 field limit?

Yes, but it would take code changes. I could do it, but I did not see a need at this time. If you have a need, let me know and I might be able to slip it into the next release.

Can you add this / that / the other?

Yes, but I have no time lines that I would do it in. I might finish tomorrow, I might finish next month. I gladly take requests as just that, requests… I am not asking for money, so please do not have expectations beyond a free service…

Did you write this plugin from scratch?

The greatest form of flattery is plagiarism πŸ™‚ I am not the original author of the base plugin – I highly modified an existing one. This is a modified and re-branded version of the Plot Over Time plugin by MidnightRyder: http://www.midnightryder.org

Berrikuspenak

Ez dago berrikuspenik plugin honentzat.

Laguntzaileak eta Garatzaileak

“Plot Over Time – Extended” software librea da. Ondoko pertsonek egin dizkiote ekarpenak plugin honi.

Laguntzaileak

Aldaketen loga

Version 1.0, July 30, 2014 – Initial Release
Version 1.1, July 30, 2014 – Issues with dates solved
Version 1.2, July 30, 2014 – Minor issue with width settings
Version 1.3, July 30, 2014 – Reduced SQL time, fixed data sorting and limit issues from original plug-in
Version 1.4, July 30, 2014 – Fixed post_cat and maxdays issue created by SQL cleanup in previous version