Pivot Tables take tables of data and allow the user to summarise and consolidate the data at the same time. This is a great and very fast method of analysis but is restricted to handling mathematical functions on the value field resulting in numerical summaries.
It is possible to combine Custom Number Formats with the Pivot Table to produce Text based answers.
Download some sample data and follow along here: Sample File.
On the Simple Example worksheet
You will see that we have a sample table consisting of 5 fields, Names, Email, Opened and Date
Next add a numerical field “Open”, to convert the Opened field to a value
In F2: =(D2=”Yes”)*1 and copy F2 down
We can now add a Pivot table to the expanded table:
Select the area A1:F9
Insert, Pivot Table, Pivot Table
Select a Table or Range: ‘Basic Example’!$A$1:$F$9
Existing Worksheet: Location: I2
Once the pivot table is added, the PivotTable Field List will be displayed
Drag the Date field to the Column Labels
Drag the Email field to the Row Labels
Drag the Open field to the Sum Values
The Pivot Table will low look like this:
We can hide the Grant Total Row and Column by right clicking on the Grand Total Heading and select Remove Grand Total.
We will now add a Custom Number format to the Sum of Open area
Select the Sum of Open area
Right Click and select Format Cells
On the Number Tab, Select the Custom Category and enter a Format code: [>=1]”Yes”;[=0]”No”;
Anywhere that a value >0 occurs the word “Yes” will appear and where ever it is 0 a “No” will be shown.
You can do any of the normal Pivot Table, Filtering, Grouping etc activities and the results will change accordingly.
You can now format the Pivot Table as desired.
More Complex Results
We can use the Custom Number Formats to define up to 3 Text Values to either individual or Ranges of results.
Goto the Complex Example worksheet.
This Pivot table has used a Custom Number Format of: [<=9]”Low”;[<=19]”Medium”;”High”
This Custom Number Format assigns a Value of Low to a Sum of Rank <= 9, a Value of Medium to a Sum of Rank <= 19 and High to the remainder of the values
The Pivot Table also has a Conditional Format applied to the Sum of Rank area which applies a Color to the Font of the cells.
Limitations
The limitations of this technique are in that a Custom Number Format can only display 3 Conditional formats using the [ ] parameters.
There are a number of techniques that can expand on this using VBA and these are discussed below:
Displaying Text Values in Pivot Tables with VBA
Robert Mundigl has written a great article on using Text within Pivot Tables using VBA
Emulate Excel Pivot Tables with Texts in the Value Area using VBA
References:
You can read more about Custom Number Formats here:
Here at Chandoo.org:
http://chandoo.org/wp/2008/02/25/custom-cell-formatting-in-excel-few-tips-tricks/
http://chandoo.org/wp/2011/11/02/a-technique-to-quickly-develop-custom-number-formats/
http://chandoo.org/wp/2011/08/19/selective-chart-axis-formating/
http://chandoo.org/wp/2011/08/22/custom-chart-axis-formating-part-2/
http://chandoo.org/wp/tag/custom-cell-formatting/
Elsewhere
http://www.ozgrid.com/Excel/CustomFormats.htm
http://peltiertech.com/Excel/NumberFormats.html
You can read more about Conditional Formatting here:
http://chandoo.org/wp/2009/03/13/excel-conditional-formatting-basics/
http://chandoo.org/wp/2008/03/13/want-to-be-an-excel-conditional-formatting-rock-star-read-this/
15 Responses to “A Gantt Chart Alternative – Gantt Box Chart”
That's a great idea.
Maybe the planned End Date should be highlight more.
I don't know how it would look like (nor how to do it yet), but what if instead of finishing the bold line to the best case End Date, it finishes to the realistic End Date?
The idea is ok, I think other project management tools have this, already? Maybe not.
Gantt charts in my view are about the signal most unless thing in the world, theres no way you can look at one thats more that a little complex and understand what it's telling you. I'm going to write a diatribe on project management at some point, its one of my pet areas I think!! 😉
The issue I have with this chart Chandoo, is that Tasks need to be linked to each other, so they should inherit the uncertainty, which would mean the as you moved down chart the lines would be miles apart for later tasks, and you might have to add lots of lines for subsequent tasks to cover the various outcome of it's parents.
Having said that, for the high level board summary, it's a nice way to go, it it appeals to the management 😉
thanks Chandoo, great post.
Ross
Whoooa !!! That's a very clever idea Chandoo. I really love it.
I think i'll update my gantt project sheet with that idea soon (remember my template ?)
@ross : you can link start date to the end date of the previous task in your data. The only problem I still se is to which end date (real ? planned ? best ?) in order to have average amount of information.
If best end date, you'll tend to increase uncertainty at the end of chain, although if you link to real end date, uncertainty will be decreased too much, leading in both cases to wrong management direction.
Maybe planned till the task is finished then real will do the job ?
Hey chandoo, this looks good and this would definite add value in production planning / scheduling. Uncertainity in finishing a task is very high in production scheduling and this could give an insight or a bird eye view of possible shipments we can have....
I've always been frustrated by the limitations of gantt charts. Will definitely use this, I've always struggled with how to succinctly communicate the uncertainty of certain tasks without confusing stakeholders.
I like this, I think it's a very effective way of showing how a timeline can change and which parts of a project need close attention.
@Cyril / @Ross: I would intially link the the start date to the planned end date of the previous task, with the chart updating when a task has been completed to reflect the true end date.
Or what about giving a drop-down selection box to allow the user to see the chart based on planned/best-case/worst-case end dates?
Like the idea. Have found that Excel is more flexible than MS Project for graphical solutions. The "Best Case"\"Worst Case" metrics are theoretically appealing but once the project and\or phase commences their reliability diminishes. A chart like the above that showed Planned Start, Planned End, Replan End Start, Replan End Date, Number of Replans the Start and End Dates, and Actual would provide an active, actionable view of each task\phase. It would also highlight the areas which are riskiest.
It is always amazing how flexible excel can be.
My question is how would the chart show a scenario where the date moved up? If a task is dropped or the duration of the task is significantly reduced by applying more people or machinery to the task, the dates will move up.
The gantt chart has been around for a long time, but it is still quite useful to show progress.
Cheers,
B
I like the idea but seems bit complicated in case of long projects involving numerous activity.
Also, reading and explaining is required hence not feasible where plans are just send to audience for approval.
Cheers
SY
Great idea Chandoo,
When I was reading this idea regarding delivery dates, another thought popped into my mind, how can you show the uncertainty with MONEY!!
In this case, applies to cost management or even a normal budget, you think?
Would Box Chart and Gannt Chart help to understand the best case, middle case and worst case when money is spend or planned with these three risks are involved?
I imagine that this chart could help people who write their budgets get a better understanding of risks affecting their spending.
Peter
Chandoo,
I like it. How would you display an entry once it has been completed (actual)?
Thank you,
Matt
From what you have shown so far I think that this box Gantt chart is awesome! I think that this could be an extremely useful tool.
I can't wait to learn how to make my own charts in Excel.
Will the methods that you are going to teach us work in 2003 as well?
[...] Firday, we proposed a new chart for showing project plans. I chose an ugly name for it and called it Gantt Box [...]
You need to read Eli Goldratt's Critical Chain. The uncertainty you are looking for should be accounted for in a project buffer. Not at each task level.
Further you should spend time understanding Agile Development. This would have you plan only in 1-3week iterations. This allows you to embrace changes to work not yet started, and for your customer to re-direct your course at regular intervals (after each iteration) throughout your project. keyword search: Agile Scrum
These items will show you that you are solving a tracking problem for something that you can entirely avoid!
[…] Chandoo.org’s Gantt Box Chart. […]