3(.14) ways to use pie charts
Happy Pi Day! What’s that exactly? Remember geometry and learning about finding the area and perimeter (aka circumference) of circles? To get your calculation correct, you need Pi in your equation. You might also see pi as the Greek letter “π”. It’s the ratio of the circumference of a circle to its diameter — which is always approximately 3.14159… (it’s actually been calculated to over one trillion digits beyond the decimal point!).
In the US and some other countries we write our dates in a MM/DD/YY format so today, March 14th, is 3/14. If you round Pi to it’s ten thousandth decimal place you get 3.1416 which means this year today is the ultimate Pi Day! And even though most other countries write their dates in a DD/MM format, today is generally accepted as Pi Day worldwide since we only have 12 months. If you’re nerdy like me, you can read more about Pi Day here. Yes, it’s a real thing. Yes, it has its own website.
In honor of Pi Day, here are 3 interesting uses of pie charts in iCarol.
1. A Bird’s Eye View
Use Pie Charts to give you a sort of broad overview of how the numbers or percentages are shaping up for a certain sub-category of your call form. Or, use it as an overview of your location breakdowns.
In the Analysis tab of Statistics, when selecting Chart Type, you have two Pie Charts to choose from, either Caller Issues and Demographics (which will start by showing you all the Categories on your call form) or Caller Location.
The resulting charts are below. If you selected the Caller Issues and Demographics chart you get this broad overview of your call form Categories.
And if you selected the Location pie chart you’ll see a high level look at the geographic location entries.
2. Drill down to get more detail
Once you’ve got that high level pie chart available, you can click on pieces of the pie to drill into the data below. Drilling into a Category will then show you the sub-categories that are available. These sub-categories are the Groups or questions asked within each category on your call form. On a location chart, drilling into the State or Province piece of the pie will show you the county level information.
If we take our Caller Issues and Demographics chart above and drill into the mauve colored “Issues” category, we’ll see the Issue choices of sub-categories.
If we click on the “Mental Health/Counseling” piece of the pie, we’ll drill down to the lowest available level, which are the field choices or answer options within that sub-category. These are the items you may find in the drop-down or list of check box choices on the call form.
As mentioned, if you drill further down into the location pie chart, you’d get the counties breakdown. So if I click on Nevada, I’ll see the Nevada counties chosen.
Clicking on Eureka county shows me how the city numbers shape up for that county.
3. Percentage vs. Count
Remember if percentages aren’t really your thing and you’d like to see a count instead, just click the “Total Count” option for any of the pie charts shown.
Now that I’ve told you a bit more about pie charts in iCarol, I suggest you go celebrate Pi Day in the truly best way possible — enjoy a piece of real, edible pie.
Dana joined the iCarol team in 2013 after 12 years of direct service and administrative duties at a blended 2-1-1/crisis intervention/suicide prevention center. As the Communications and Social Media Manager at iCarol, you’ll find her presenting Webinars, Tweeting, Blogging, Facebooking, and producing other materials that aid helplines in their work.