In the past I have written a number of posts on the use of Custom Number formats including
Selective Chart Axis Formats
Custom Chart Axis Formats (Part 2)
A technique to quickly develop custom number formats
Chandoo has written about Custom Number Formats in:
Custom cell formatting in Excel a few tips tricks
Color Modifier
As part of these techniques you have the option to set the colors using the [Color] modifier
You can use a Custom format of: $#,##0;[Red]-$#,##0
10 Dollars will be displayed as $10
-10 Dollars will be displayed as -$10
Colors available include Red, Blue, Green, Yellow
However there is a much larger color palette available
Anybody who has or is still using Excel 2003 or prior will have a color picker which looks like this:
Well these 56 colors are all available and not just in Excel 95-2003 but in All Excel versions up to and including Excel 2013.
We have two methods to access these colors:
1. Using the Colors Name or
2. Using a Color Number.
Color Name
In Excel 95-2003 you can Right Click on a cell and change the Font or the Fill color
Simply select a color like below:
Note that a Green Color has been selected, the Dialog shows the name of the Color as Sea Green
To save you opening an early version of Excel here are all the colors listed above:
Top Row
Black, Brown, Olive Green, Dark Green, Dark Teal, Dark Blue, Indigo, Grey-80%
2nd Row
Dark Red, Orange, dark yellow, Green, Teal, Blue, Blue-Grey, Grey-50%
3rd Row
Red, Light Orange, Lime, Sea Green, Aqua, Light Blue, Violet, Grey-40%
4th Row
Pink, Gold, Yellow, Bright Green, Turquoise, Sky Blue, Plum, Grey-25%
5th Row
Rose, Tan, Light Yellow, Light Green, Light Turquoise, Pale Blue, Lavender, White
6th Row
Periwinkle, Plum, Ivory, Light Turquoise, Dark Purple, Coral, Ocean Blue, Ice Blue
Bottom Row
Dark Blue, Pink, Yellow, Turquoise, Violet, dark Red, Teal, Blue
To use these use the format $#,##0;[Color Name]-$#,##0
eg: [Blue Grey]$#,##0;[Sea Green]-$#,##0
This will display Ten Dollars as $10 and Negative Ten Dollars as -$10
Color Number
The Alternative method is to use a Custom Number Format and using the Color Number modifier like [Color Number]$#,##0;[Color Number]-$#,##0
[Color4]$#,##0;[Color3]-$#,##0
This will display Ten Dollars as $10 and Negative Ten Dollars as -$10
Once again to save you trialing each color you can see the effects of each color on a white and Black background below:
Warnings:
I haven’t tested it but I am sure the Color Names will be different in different language versions of Excel.
I haven’t tested these techniques on a Mac version of Excel but I am pretty sure these techniques should work.
Forward compatibility should be ok, but can’t be guaranteed.
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 [...]
[…] Grouping smaller slices in pie chart […]
Good article. Is it possible to do that with line charts?
Hi,
Is this available in excel 2013?