Pie Chart/ Practice

By John Wickham

Pie charts are weirdly one of controversial bits of infographics scene. People say that they are very common in the space, but most people do not understand how to make. People make it hard to understand with problems such as not understanding the percentages or just having to many slices for the chart.

Pie charts are best used to show comparisons between small number of different categories (2-5 different sections) and when you want to highlight one specific piece of data.

This pie chart above is about the sales of books within a group of genres. The main point I wanted to show was the low number of sales from the mystery genre. This highlights that more people should by mystery sections

UN CONTRIBUTION: Pie Chart Edition

Pie charts are a difficult tool to use because they require very specific scenarios to be the most applicable. For my perfect-use case I decided to display the contributions of countries to the UN budget, shown as a percentage.

I think this is a perfect data set to use a pie chart because it’s simple and doesn’t have an excess of labels. This data set as it’s shown tells you that the US contributes almost one quarter of the total UN budget, and that the top four countries combined contribute nearly as much as the remaining 130 members combined. You may be able to add a fifth or sixth country to this pie chart, but then you lose the 50:50 narrative that is very easily read here.

Source: www.auswaertiges-amt.de/

-Jack Swenson

Pie Charts

This data set is a perfect case for a pie chart. The percentages add up to 100. This means that all of the parts add up to a whole, which is a crucial part of a pie chart. A pie chart is also good to use here because there are only 6 categories. There is not too much going on and the chart does not look cluttered. It is very easy to read and the audience can easily compare the sizes of the slices to each other to tell which sport is more popular.

The data here is not served better as something other than a pie. A bar chart would work, but a pie chart is the most effective visualization for this data set.

I came across multiple design strategies to make this pie chart more appealing. First I color coded the different slices. This makes it easier to differentiate the slices from one another. Another thing I did was I put the category name and percentage in every slice of the pie. The percentage provides a more in depth look at the data. Also, adding the category name allowed me to take away the legend. This makes it easier for the reader to digest the information. They no longer have to glance at the legend, then to the chart, then back and forth. All of the information is in the pie chart.

PIE CHART – A PERFECT USE CASE

A pie chart is a graphical representation technique that displays data in a circular-shaped graph. A pie chart best suits the parts-to-whole relationship for categorical or nominal or proportional data which sums up to a whole, mostly 100% or 1. Due to its unique display of data, it is better to not use so many data points in order to keep it simple and attractive. Often time, people use large amounts of data points which displays a crowded chart with many points of less significance making the chart not relatable or difficult to analyze.

make sense to show a parts-to-whole relationship for categorical or nominal data. The slices in the pie typically represent percentages of the total. 

Pie charts should be considered when the data possesses the following,

  • Few components
  • No time representation
  • Distinct parts
  • Easy visualization
Figure 1.00 Graphical Representation (pie chart) of bane of development in Ghana

Figure 1.00 is a simple display of data on a pie chart. It has fewer data point and the total of the proportions sums up to 100%.

Though the data as presented in figure 1.00 can be presented in a column chart and would make sense just as the pie chart, I would still prefer the use of the pie as it is more engaging compared to a column chart. Figure 1.01 below show a column chart of the same data as in figure 1.00. Though simple, audience will naturally not be able to tell the proportions of each column or what the total is so in this case I will prefer to use the pie chart for much convenience and easy visualization.

figure 1.01

There are some few design tips to consider when designing a pie chart and some of these are;

  • Avoid using 3-D designs
  • Use colors that match your data
  • Avoid too many slices
  • Use presentable fonts
  • And many more…
https://www.youtube.com/watch?v=0WNJkBXywMU

Using Pie Charts to Represent NHL Playoff Percentages

Using pie charts is beneficial for showing percentages that display the proportions of the data. Each section of the pie chart resembles a different piece of data. For my pie chart example, I decided to take the Metropolitan NHL Teams and researched their percentages of making it into the NHL playoffs. It is still early in the season, so the data I have researched changes weekly. My information is based on playoff chances as of Sunday, October 23rd, 2022. Using monkeypuck, I took the percentages of all the Metropolitan Division Teams, which can be found on the NHL’s official website.

As I was making my pie chart, it was rather easy to display the numbers and data. I then realized, if I moved the data labels while they are outside of the pie chart, it would automatically draw a line to the corresponding data. I made each data label color match the corresponding team as well as each slot in the pie chart. For example, the Philadelphia Flyer’s team consists of black, orange, and white. As shown on the pie chart, you can see the Philadelphia Flyer’s slot is colored orange. I also related the colors of the other teams, to the boxes as well, which can be seen in my pie chart. I also changed the fonts and font sizes, along with adding text boxes for the percentages of each team, inside the pie chart. Specifically for the data set I used, the pie chart is the best way to display this data. Otherize, a bar graph could be used as well, but I do not think it is as visually appealing in this scenario. I believe this data is better served as a pie chart to visually see the different percentages of each team’s playoff odds.

Pie Charts

A pie chart can be an exceptional tool when trying to display the totals out of 100% compared to other kinds of charts and graphs. When using a pie chart to break down complete totals it helps the viewer visualize the 100% since the whole pie is right there and they can see the portions of it cut out relative to the percentage.

This is an example pie chart I made which breaks down the weekly phone screen time usage between a handful of apps on my phone.

As one can see the slices very clearly show how 100% of a weeks worth of phone screen time can be broken up between these 5 subjects. One tip however for creating an effective pie chart is to limit yourself on how many slices or subjects are in the chart. If there starts to become too many then it makes it harder for the viewer to see each respective slice. In that situation than something like a bar graph will be more effective.

For more on the effectiveness of pie charts, click here.

Pie Charts

Part charts extremely easy to make and they can get the point of your data across very clearly. Pie charts tend to do better with a few categories rather than more because they can also become too busy very quick. Here is a pie chart to show data from a simple poll of whether people like ice cream or not.

Pie Charts

by Robert Fox

The pie chart that I chose to make depicts the method of learning students were most interested in in the United States, in the year 2021.

I believe this was a good example of data to use in a pie chart because it represents a part for the population out of the whole. In this specific example, the whole is the students who participated in this survey in the U.S and each part is filled with a certain percentage of those citizens based on how they entered said poverty.

As far as design choices I made for this chart, I chose to go with a bright with countered darker colors color in order to make the chart itself more eye catching to the audience. That and making sure each title in the figure had the data variable with it.

Pie Charts

By: Veronica Perkins

Pie charts are a form of data visualizations that can help represent data given to us. Pie charts are ideal when your data adds up to 100. I made a pie chart to help represent this:

I made this pie chart to help illustrate how pie charts can be used.

Pie charts are great for when you have multiple data points (that add up to 100%) because it allows the audience to see how the data is divided. In this case, the data I chose, represents what people want to be for Halloween and the data is completely made up. However, even though the data is made up completely, it still allows for the audience to see the data in a simpler way. I believe that this pie chart is a great version of data visualizations, but this data could also work on bar graphs as well. Here are a few tips for making pie charts: Be sure to vary each slice using different colors. Also adding data labels, such as numbers, can be a big help visually for the audience as well.

Here is a video that helps walk through how to make pie charts, their use, and tips.

Happy creating! 🙂

Pie Chart

I decided to create a pie chart based on the types of pools within the U.S.

data from http://www.adipools.net/news/2015/7/30/fun-facts-about-swimming-pools

For my data, I decided to use data of the 10 million pools within the country to see what was America’s favorite set-up for their pool.

The reason this data is served best as a pie chart is the simple fact that percentages are perfect for pie charts. Not only do they look visually appealing, but they show exactly in visual terms what America prefers best, which looks split between above and in-ground pools. It’s a simple and visually pleasing way to show percentage data without being too complicated.

Pro-tips for creating a pie chart is to include the percentages within the graph. That way the reader does not have to search long for the data but instead focus on the graph data with ease.