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Issue 13.4 ('"El Capitan"')
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Charting Personal Health

Adding a scatter chart feature to a PHR solution

Issue: 13.4 (July/August 2015)
Author: J.C. Cruz
Author Bio: JC is a freelance writer based in British Columbia. He is a regular contributor to MacTech Magazine and Dr Dobb's Journal. Away from the writing pile, JC spends quality time with his nephew, as a proper uncle should.
Article Description: No description available.
Article Length (in bytes): 44,214
Starting Page Number: 36
Article Number: 13406
Resource File(s):

Download Icon 13406.zip Updated: 2015-07-01 11:12:03

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Excerpt of article text...

User-patients may want their health entries shown in a more graphical form. So today, we will learn one way to achieve this—through charts.

We begin with a look at the scatter chart, learn about its makeup, its benefits and limitations. We will design a chart widget, using the Canvas class as its basis. Then we will use the widget to produce two types of scatter charts.

Readers are expected to have a working knowledge of Xojo and REALbasic. The updated PHR project, FooHealthMk2, is available from the magazine's website.

Charting Health Entries

A chart can reveal things that are not immediately obvious from the raw data entries. A chart can show how well a patient's health is progressing. It can show how close they are to a specific health risk. It can also show which entries are suspect and ought to be ignored.

The scatter chart

...End of Excerpt. Please purchase the magazine to read the full article.