What is Your Opinion on Pie Charts?

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Here is the big hairy question of the week. What is your opinion on Pie Charts?

Pie charts are one of the most used charts in the world. And for obvious reasons: they are simple to create and easy to understand.

When it comes to pie chart, I have no clear opinion. Part of me says use them, the other says avoid them. The debate about pie charts is not just internal. Last time when Seth Godin included pie charts in his 3 laws of great presentation,

The problem with bar charts is that they should either be line/area charts (when graphing a change over time, like unemployment rates) or they should be a simple pie chart (when comparing two or three items at the same scale).

there was so much furor in the data visualization blogosphere that Seth even did a follow up post comparing bars with pie charts, where he says,

The pie chart contains far less data, but the point is obvious: Trolls are where we should focus our energy.

That’s why you use it.  …

I stepped on the toes of many data presentation purists yesterday, so let me reiterate my point to make it crystal clear: In a presentation … the purpose of a chart or graph is to make one point, vividly. Tell a story and move on.

Personally I think pie charts provide great utility at very little cost:

  • They are very easy to create
  • Very very easy to understand (provided the data has some contrast, if your numbers are like 43,44,45,46, there is little chance that anyone can understand the resulting pie chart and make out which one is large and which one is small)

But, I also think they are easy to abuse (one reason why you see way too many pie charts compared to other charts).

Here is what I think cripples a pie chart from being effective:

    Pie Charts with too many values

  • Too many data points. A pie chart would probably be effective up to 4 values, anything more and you better have a strong story behind it for people to read and interpret. For eg. the pie chart shown to the right is used in Google Analytics reports. This compares browsers used by visitors of a site and even though there are probably hundreds of browsers, only 2 are prominent, so the pie still works.
  • Pie Charts - What colors to use?Poor use of color. The purpose of color in most visualizations is to bring contrast. To separate apples from oranges. To throw light where your story lies. But most programs that are used to generate pie charts have poor (and often scary) color choices. When you use poor color combinations, the result will be drastic. But this blame is not on the person making pie charts, but on the pie chart software. See the example aside from clearlyandsimply to see what contrast means.
  • Making Pie charts that are difficult to compare. The purpose of pie charts is to provide comparison. So when we make a pie chart that has poor ability to compare, we are already lost. That means we should avoid all the flashy formatting, 3d pie charts, 3d donuts and layered donuts etc. Also, whenever possible, try Using data labels, using color and if nothing works, try using other types of charts for comparison. After all, we are not selling pie charts, we are selling our stories.

Ok, now the ball is in your court (or the pie is in your plate).

What do you think about pie charts?

Do you prefer them or do you consciously avoid them ?

How do you think pie charts can be put to better and greater use ?

Your turn…

Earlier on pie charts: Why no one likes your pie & what to do about it? | In cell pie charts | 22 beautiful pie chart templates for excel

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49 Responses to “Project Management Dashboard / Project Status Report using Excel [Part 6 of 6]”

  1. [...] display milestones Part 4: Time sheets and Resource management Issue Trackers & Risk Management Project Status Reporting – Dashboard Bonus Post: Using Burn Down Charts to Understand Project [...]

  2. Alex says:

    Excellent!

    I was looking forward to this and you've done it again...Shame I can't claim it was all my own work 😉

    ps hope you're getting enough sleep

  3. Izabel says:

    Excelent !!! Tks to share your knowledge with us.
    Izabel
    Sao Paulo - Brazil

  4. Miguel says:

    Nice job!.

    I'm also keen on PM Excel Dashboards. Please, take a look at

    http://screencast.com/t/TyaxH5r4mDf

    That's one example of my Project control Spreadsheets.

    Cheers

  5. [...] haired Dilbert hat zum Abschluss einer Artikeserie zum Thema Projektmanagement mit Excel eine Anleitung zum Bau eines Projekt-Dashboards veröffentlicht. Ein Dashboard ist eine Visualisierungsform für große Mengen von meist [...]

  6. Rishil says:

    Quite a nice and helpful article. I am sure excel is one of the most used application across many many big companies. And your info on project status update using excel would surely be usefull. Keep up the good work on this blog site. Also to share there are some open source flash-based graphing and charting solution which caould also be used on any project..
    http://askwiki.blogspot.com/2009/07/how-to-create-quality-charts-using.html

  7. Chandoo says:

    @Alex, Izabel .. thank you 🙂

    @Miguel: Thank you. Your dashboard looks very good. It is inclined towards the budget and finances of the project. I have kept those aspects out of this series. May be I will revisit the financial aspect of projects at a later point.

    @Rishil: Thank you. Yes, you can create flash based charts (or even simple image based charts) and embed them in a project dashboard that can be published to the team using intranet (like sharepoint). This is how large companies usually do it. Thanks for sharing the Askwiki article.

  8. Tim says:

    Great looking dashboard!! Do you have a version for the Mac versions of Office available?

    Thanks

  9. ravi says:

    Chandoo,
    this is great piece of collating info.I liked it and shall try using it in office.
    Thanks for the all hard work behind this.

  10. Mrigank says:

    Chandoo,

    Kudos. This is really as simple as it gets for laymen. We did this sort of stuff in Consulting - but this can now become really simple for people. Will have my team look at this! Great work.

    thanks,

    Mrigank

  11. [...] I suggest reading my 7 part series on project management using excel. Starting with Excel Gantt Charts to Project Dashboards. [...]

  12. bw says:

    Just downloaded the project management template bundle...great!

    Have you done anywork on a Project Portfolio Dashboard template?

  13. Chandoo says:

    @Bw... Thanks for getting a copy of the templates. 🙂 I have worked on few assignments where we built such templates. But these are similar to other regular dashboard templates. I will share some of these ideas in a later post someday. Meanwhile if you have any ideas on how to structure project portfolio dashboard, let me know using comments or email.

  14. [...] to display milestones Time sheets and Resource management Issue Trackers & Risk Management Project Status Reporting – Dashboard Bonus Post: Using Burn Down Charts to Understand Project [...]

  15. [...] display milestones Time sheets and Resource management Part 5: Issue Trackers & Risk Management Project Status Reporting – Dashboard Bonus Post: Using Burn Down Charts to Understand Project [...]

  16. [...] to display milestones Time sheets and Resource management Issue Trackers & Risk Management Project Status Reporting – Dashboard Bonus Post: Using Burn Down Charts to Understand Project [...]

  17. Josh L says:

    Thanks fro the great ideas! To get a sense of the layout and design of a Dashboard more geared toward Cost and Schedule anaysis, check out the example Dashboard at http://www.ProjectDashboards.com which was built entirely in excel.

  18. DS says:

    hey,

    i just need a simple Chart where by i can show some of the projects by % wise. no dates required.

    1st column Project name and 2nd column will be status (filled with %). can you pls help me out.

    Thanks.

  19. Chandoo says:

    @DS... if you have excel 2007, you can use data bars in conditional formatting for this purpose.

  20. Larph says:

    Hi Chandoo - this series is an excellent resource and tutorial, thank you for sharing.

    When I sat down to consider what my dashboard should look like, one of the most important features for me is to be able to maintain version control and to show simply on what version is on display.

    Apart from the naming convention of the file name, is there a good way to do this within a dashboard? I'd be interested to hear your thoughts!

  21. Chandoo says:

    @Larph: Welcome 🙂

    > You can do version control thru Macros (but always remember that your audience can disable macros)

    > Another option is to use a static time stamp / version number in the title page of dashboard that you update manually whenever you make changes to the file

    > In excel 2010, you can keep track of file versions from File menu. This can be used to select a previous version of dashboard.

    > Best option is to use a version control system like SVN or upload files to Sharepoint or something like that. This will take care of versioning for you (although it is a bit technical and dashboard audience may have difficulty figuring the versions out).

    > The easiest option is to use filenames and the CELL() formula to get the version number (or date) from the filename so you can show it on the dashboard.

  22. Di says:

    Hi Chandoo... I'm following you from Brazil...
    I would like to thank you for the tips about excel, mainly with dashboards ... It helped me a lot …
    Take care...

    Di

  23. Kelly Fidei says:

    On the dashboard when I print, the text is blanked out in the middle of the Issues list - suggestions on how to fix?

  24. Neil Joseph says:

    Hi Chandoo, do you have an equivalent Project Management Dashboard / Project Status Report for MS Office 2010?

  25. Paul Brown says:

    As a Microsoft trainer I'm interested in your choice of Excel for project management. I'm assuming that you've tried Microsoft Project and have decided not to use it? We get folks on our MS Project courses who've tried to use Excel for PM purposes and none of them have made such an impressive project plan, but I wonder is it worth all the effort?

  26. Arc Nteimam Finomo says:

    This looks very interesting. How may I be a part of this

  27. Stephanie says:

    Does this template work in Google Spreadsheets?

  28. Thierry Lutonto says:

    Many thanks for sharing your expertise with us. Keep up the good work 🙂

  29. ppm software says:

    Heya i'm for the first time here. I came across this board and I to find It really helpful & it helped me out a lot. I am hoping to offer one thing again and aid others like you helped me.

  30. Adam G says:

    Hi Chandoo,
    Your PM dashboards impressed me so much that I've downloaded the Portfolio and Project Management package.  All of the documents look very professional.
    I was going through the Portfolio dashboard and I had a question.  
    When I enter in additional holidays they are highlighted in the gantt chart.  Is it possible so that the name of the holiday shows up in the highlighted area of the gantt chart.
    Thanks
    Adam

  31. alan foster says:

    can you confirm that the downloads will work on a mac - excel for mac v14.3.6

    thanks

  32. Paul says:

    Made a slight variation on the schedule sheet,

    1. Add a date column for start
    2. In week column cell use =weeknum() and link to date cell
    3. Hide week column

    When you enter in a date for each task the week number is populated accordingly
    simple but more effective, you can also dynamically link the date cell to your MSP project file for even more automation!!

  33. Irick Burris says:

    I purchased a copy of the project management dashboard excel file. I misplaced the password to unlock the file and make modification. Can you please resend the password.

    Thank much in advance...

  34. ninemsn.com.au says:

    Hi there! I just would like to give you a big thumbs up for your great info
    you've got right here on this post. I'll be returning to your website
    for more soon.

  35. Vijay says:

    I bought ur project management template just want to know how to hide the budget section from portfolio?

  36. Squirrel says:

    Hi, Thanks - very good job you've prepared!
    You've inspired me as well 🙂
    Best regards

  37. mj says:

    Hello!
    I am using a gantt chart template which i got from your website. All is good just when I add all my acitivities in data spreadsheet and then go back to gantt chart to view them, I only see first 9 and then I need to keep scrolling for the next ones. is it possible to see most of the activities if not all in the single frame.
    thanks for answering!

  38. Sanford says:

    This is my first time pay a visit at here and i am actually happy to read all at alone place.

  39. gerald says:

    I am interested in your dashboard; downloaded the locked version, unable to use it...do you have a user guide that is available that I can see and use on the locked version?

  40. Arun says:

    Please send me daily newsletter

  41. Ramya says:

    Hi,
    I downloaded the PM dashboard and the gantt chart only has dates till the year 2016. How do I change this to include 2017 FY as well.
    When I enter a activity for this year , it fails to show up on the chart.

  42. Hari says:

    Hi

    Would.like to purchase the project management .kits

    Pls share the payment link in INR

    Also share your contact number to speak with you

    Regards
    Hari
    9384825926

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