In Petal Charts – an Alternative to Radar Charts I have suggested using a radar chart tweak to replace the radar charts. Both PTSBlog and Information Ocean have posted their critical reviews of these petal charts.
So as a penance for proposing petals, I am going to provide a tutorial on creating a comparison table in Excel for replacing the radar charts. We are going to create a comparison table chart like the one featured on right that is proposed at Information Ocean.
Creating Spot Matrix Charts in Excel in Just 5 Steps
The trick for creating comparison table like the above lies in using a dingbat (symbol) font named “Wingdings 2” that is pre-installed in most of the Windows machines.
- First arrange your data in tabular structure. For eg. let us assume this is the data we are trying compare:
- Now create another identical table. We are going to fill this one with one of the 5 circular symbols :
. 
Next go to an empty cell, lets say C3, and press ALT+I followed by S (Menu > Insert > Symbol). Set the font to “Wingdings 2” and insert these 5 circular symbols to the cell C3.- Now, in the blank table you have created in step 2, let us write formulas to fetch one of the circle symbols based on our data. A sample formula can be like this:
=MID($C$3,FLOOR((data-1)/5,1)+1,1)
Copy paste the formula in the entire table. - Finally, change the font of the new table to “wingdings 2”. Adjust colors / size if needed. When you are done, the comparison chart table should look like:
Download the Spot Matrix Charts Template and Replace your Radars
That is all. How do you like this compared to petals?
14 Responses to “Group Smaller Slices in Pie Charts to Improve Readability”
I think the virtue of pie charts is precisely that they are difficult to decode. In many contexts, you have to release information but you don't want the relationship between values to jump at your reader. That's when pie charts are most useful.
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Chandoo,
millions of ants cannot be mistaken.....There should be a reason why everybody continues using Pie charts, despite what gurus like you or Jon and others say.
one reason could be because we are just used to, so that's what we need to change, the "comfort zone"...
i absolutely agree, since I've been "converted", I just find out that bar charts are clearer, and nicer to the view...
Regards,
Martin
[...] says we can Group Smaller Slices in Pie Charts to Improve Readability. Such a pie has too many labels to fit into a tight space, so you need ro move the labels around [...]
Chandoo -
You ask "Can I use an alternative to pie chart?"
I answer in You Say “Pie”, I Say “Bar”.
This visualization was created because it was easy to print before computers. In this day and age, it should not exist.
I think the 100% Bar Chart is just as useless/unreadable as Pies - we should rename them something like Mama's Strudel Charts - how big a slice would you like, Dear?
My money's with Jon on this topic.
The primary function of any pie chart with more than 2 or 3 data points is to obfuscate. But maybe that is the main purpose, as @Jerome suggests...
@Jerome.. Good point. Also sometimes, there is just no relationship at all.
@Martin... Organized religion is finding it tough to get converts even after 2000+ years of struggle. Jon, Stephen, countless others (and me) are a small army, it would take atleast 5000 more years before pie charts vanish... patience and good to have you here 🙂
@Jon .. very well done sir, very well done.
good points every one...
I've got to throw my vote into Jon's camp (which is also Stephen Few's camp) -- bars just tend to work better. One observation about when we say "what people are used to." There are two distinct groups here (depending on the situation, a person can fall in either one): the person who *creates* the chart and the person who *consumes* the chart. Granted, the consumers are "used to" pie charts. But, it's not like a bar chart is something they would struggle to understand or that would require explanation (like sparklines and bullet graphs). Chart consumers are "used to" consuming whatever is put in front of them. Chart creators, on the other hand, may be "used to" creating pie charts, but that isn't an excuse for them to continue to do so -- many people are used to driving without a seatbelt, leaving lights on in their house needlessly, and forwarding not-all-that-funny anecdotes via email. That doesn't mean the practice shouldn't be discouraged!
[...] example that Chandoo used recently is counting uses of words. Clearly, there are other meanings of “bar” (take bar mitzvah or bar none, for [...]
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Good article. Is it possible to do that with line charts?
Hi,
Is this available in excel 2013?