My friend Paresh writes excellent commentary on charts on his blog Visual Quest. Last week he gave a home work, asking his readers to recreate the small multiples chart shown below.
I found this quite interesting. Small multiples, also called as panel charts, are a powerful way to depict multidimensional data and bring out insights. They are easy to read too.
So, today, let us learn how to create such charts using Excel.
Step 1: Arrange your data
Almost any chart or visualization worth its salt must begin with proper arrangement of data. Since I could not get the data for the unemployment chart, I made up a few numbers for a fictional Confectionery Company. The data is shown below.
So, we have the data for years 2007 thru 2010, for the regions – South, West & North and for the product lines – Chocolates & Biscuits
Step 2: Select Products for one region & make an area chart
This is simple. Just select data for chocolates & biscuits for one region and make an area chart. You should have something like this:
Step 3: Resize the area chart & format it
Now, we need to make this area chart closer to what we want.
- Select the bottom area series and fill it with white color.
- Now resize the chart so that we can fit 3 of them in the area you got.
Step 4: Add same data to the chart
Now, select the same region data, press CTRL+C to copy it. Select the chart and paste it by pressing CTRL+V. See below demo to understand how to do this.
We are doing this because we want to have lines with markers on our chart. But the area chart lines cannot show markers. So we are going to add the same data one more time, but this time format it to be shown as a line.
Step 5: Select the new series and format them as line charts
Select each of the new area series and format as line chart with markers.
You should have something like this at the end.
Step 6: Format the chart
This is where you unleash the creativity. In order to match the look of NYTimes chart, here is what you can do.
- Set the fill color between lines to something dull.
- Format 2 lines in distinct colors.
- Format gridlines & axis lines to something dull.
- Set axis maximum to 25 (as all charts in small-multiples should have same axis settings)
- Set axis major unit to 5.
Step 7: Repeat this for other regions
Now, just copy and paste this chart a couple of times. Just adjust the data source so that we have new charts using this technique.
Note: Learn how you can add descriptive labels to charts.
That is all. You just made a small multiples chart that looks awesome. Congratulations.
Download Small Multiples Example Workbook
Click here to download the example workbook and play with it. You can see the steps for making one of the charts in the workbook as well.
Do you use Small Multiples or Panel Charts?
I really love to use small multiples or panel charts whenever I am analyzing data or presenting results of the same. They offer excellent value per pixel. That said, they take some time to construct. Also, you must tweak axis settings and plot area to get the perfect result. That is why I prefer the in-cell variation of these charts. They are quick to setup and easy to wow (for more on these techniques, see below).
What about you? Do you use Small Multiples or Panel charts? How do you find them? Please share using comments.
Interested to learn more? Read these
As you can guess, small multiples is one of my favorite ways to explore and present data. So we have written quite a few articles explaining this technique. Read these to learn more.
15 Responses to “Make a Bubble Chart in Excel [15 second tutorial]”
Noooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo!!
Whyyyyyyyy?
The idea is to tell how to make a bubble chart. I got an e-mail from a reader recently asking how the scatter bubble is made. So I thought a 15 second tutorial would be a good idea to show this.
Did that email go "Dear Chandoo, I know that you scorn bubble charts, but if I don't do one in Excel for my boss then he'll fire my sorry ass, and my children will have to be sold for medical experiments in order for me to be able to afford the upgrade path to Excel 2010"?
If so, fair enough...it's all in the greater good 😉
Chandoo,
I am using excel 2003 and it is not working. The x axis is not the one that I enter in x axis column. Please help! Thanks.
Sorry, after few attempts, I managed to get the right result. I shouldn't select the title (header) of the table and select only the data to produce the right bubble chart.
What's wrong with bubble charts? Is there a better method for displaying scatter plots with lots of overlapping data points? Don't tell me you'd rather jitter!
@Sanwijay: Cool.
@Precious Roy: There is nothing wrong with bubble charts. Infact, it is the only way to show 3 dimensional data (x,y and sizes) without confusing your audience. Jeff is worried that people might misuse the chart. As with any chart, bubbles also have a place and time for using them.
I recommend using bubble charts to show relative performance various products in several regions and similar situations.
Also, human eye is notorious in wrongly estimating the bubble sizes (as we have to measure areas). See http://chandoo.org/wp/2009/07/28/charting-lessons-from-optical-illusions/
We can partially improve bubble charts by adding data labels, but if you have too many bubbles, the labels will clutter the chart and make it look busy.
I can't seem to find a way to plot more than ten bubbles on a chart and need to know how to add more
@KW.. why would such a thing happen. I am sure you can add more bubbles that that. Can you tell us exactly what you are doing...
Example table:
A B C (size)
Me: 25 30 15%
Him: 30 22 11%
Her: 12 30 20%
I am trying to make a bubble chart where the Y axis is A, the X axis is B, and the size of the bubble is C. There should be only 3 bubbles. I keep ending up with six (with the labels being only "Me" and "Her"). My goal is to have three bubbles, one representing each person. Clearly I am doing something wrong. Can you help explain...?
Hi,
I wanted to add data labels to the bubbles. Each bubble represents a different company name. Excel allows me to add the size, legend, x axis values and y axis values. How do I add instead- Company A, B, C, D for the bubbles?
youon you have to choice every data for every company..
ex:create bubble for A company,after that click right> add data label> adjust data labels :format data labels and choose : series name.
i hop u will succeed .
[...] we create a bubble chart with 2 bubbles. 1 for the actual mustache & 1 for target [...]
If we want bubble size to be controlled by one column, but the bubble labels to be controlled by another column, how can this be achieved?
many thanks!!!!