Flu Trends Chart in Excel [Yes, we can edition]

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Last week I have reviewed Google’s flu trends chart and told you why it is an awesome chart. This week, I am going to show you how such a chart can be constructed in Excel.

First let me show you what I am able to do in Excel:

Flu Trends Chart in Excel

(compare this with actual chart on Google)

How I made the flu-trends chart in excel?

  1. Data, Data, Data: Data plays an important role in complex charts like these. The source data is thankfully available for download from Google.  Flu incidence data is available by week (Sunday to Saturday) for every week since 28th Sep, 2003. For each week the data if given for all regions in various columns. But I was not able to use the data “as-is” to construct this chart. I had to massage and rearrange it a bit.
  2. The main issues is how flu season is classified (it starts on July and ends in June) and how the data is (we got weekly flu incident data, starting from Sunday to Saturday). The main issue here is each year, the weeks start on different dates. For eg. first Sunday in 2010 was on 3rd Jan where as in 2009 it was on 4th Jan. I tried using WEEKNUM() formula (examples), but it didn’t work well with the flu season (Jul to Jun). So I did some basic date math and ended up mapping weeks uniformly across years.
  3. The next issue is taking one big table of data with dates in rows and regions in columns and transform it to weeks in rows, years and columns and actual flu data for the selected region in the cells.
  4. Then I set up 2 cells, one where user would specify “region” and other where a comparison “year” can be selected. I have used data validation to control the valid inputs.
  5. I used the MATCH, INDEX formulas to fetch corresponding weekly values for all years for selected region. Thanks to MATCH, INDEX and HLOOKUP formulas, this is not such a big task either. And if the optional comparison year is specified, we repeat that years values in another column. Otherwise that column is NA().
  6. Using these columns, I made a line chart. Then I cleaned up the chart and formatted the 2009-2010 series in thick blue and rest all in thin light blues. The optional comparison series was colored in red (for contrast). [related: line chart examples]
  7. The only remaining piece is to show the heat map of flu intensities below the chart. For this I have used the very useful 3 color scale conditional formatting setting in Excel 2007. (of course, I had to setup some extra calculations so that the intensities are normalized across the region / years and change when user selects a new region, but you already guessed it.)
    Excel Conditional Formatting - Heatmaps
  8. I choose to drop the colorful legend as it adds little value.
  9. The rest is some formatting and presentation.

What I learned from this experience?

  • When I looked at Google’s chart, I doubted if it can be created in Excel. But I was wrong. It can be done in excel, and it takes no more than 2 hours.
  • Data and structure of it play extremely important role in any visualization.We should understand the data and know how to arrange / transform / massage it, to make better charts.
  • Date formulas are a flu in the nose.
  • Excel 2007 conditional formatting is just awesome. [more examples]
  • INDEX, MATCH, LOOKUP formulas are very powerful. I *respect* them. [here is a tutorial]

Download flu trends chart and play with it

Download the file (Excel 2007 only). The file is locked, but there is no password. Play with it and tell me if you like it.

Do you like this chart?

Have you done something similar in Excel? What was your experience like? Do you like this chart? How would you improve / change it?

More visualizations using Excel:

Olympic Medals by Country | Survey Results Dashboard | Test Cricket Statistics | Dynamic Charts

PS: After a looong time this post had many “I”s

PPS: Have a good weekend.

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17 Responses to “Budget vs. Actual Profit Loss Report using Pivot Tables”

  1. Dau says:

    Good Work, Yogesh & Chandoo! Thanks.

  2. Abdul Kader says:

    Hi everybody,
    first sorry I am late to say something about this topic;actually I was waiting last part
    second I am not accountant I am an Engineer
    third """"Very Important""" the idea is not about Loss but I am sure it is profit
    Based on third it shows:
    1- How to use EXCEL
    2- How to use pivot TABLES
    3- How to collect and arrange DATA
    4- How to make reports

    Many Thanks

  3. UB says:

    Hi Yogesh and Chandoo,

    Thank you for sharing your knowledge!
    You guys are great!

  4. Alejandro says:

    thanks chandoo and yogesh, thanks for you lessons, are great!....i have a idea for a budget. I try to do it..... thanks for all

  5. SAUL ESPINOZA says:

    Thanks a lot for sharing the most powerful tool worldwide "knowledge"
    Warm greetings from Peru

  6. juanito says:

    Hi -
    This is a really great article because it's a simple and common thing you'd want to do with a pivot table but not at all obvious how to do it! So - muchas gracias to Chandoo and Yogesh!
    One thing - I couldn't get past the group error in the sample file. I would click on ungroup but it didn't seem to have any effect. I'd appreciate it if anybody has any pointers here.

    -Juanito

  7. Adam says:

    Hi Chandoo

    I am also having the group error. Can't seem to ungroup? Appreciate if you explain further on the steps required in order to get to calculated items.

    Many thanks and keep up the great work.

    Cheers
    Adam

  8. Catherine says:

    Hi Chandoo,

    I'm struggling resolving the problem depicted below:
    I have a set of data, with (among others) a "Region" field (can be APJ, EMEA, or AMS), and a "Country" field.
    Unfortunately, I need to group data by the following 4 Regions: APeJ, Japan, EMEA and AMS.

    I first tried to make a pivot with Region and Country in the rows (or columns), and then group Country data as per the above.
    Alas, as soon as I have a new Country that appear in my data set, my groupings are broken, and I have to redo the job of ungrouping, grouping etc.

    I thought I could try to use calculated item, by adding first a new column to my dataset concatenating Region_Country, and create an "APeJ" calculated item that would sum all the "APJ_*" and substract the "APJ_Japan", but again, no clue, as I can't find a way to use any wild card in those formulas.

    Given that I already found extremely helpful tips and tricks in your site that helped me manage that bunch of data, I'm pretty sure you'll have a bright idea on how I can solve that one!

    Thanks in advance for your lights!

    • Chandoo says:

      Hi Catherine...

      In such cases, I advice using an additional column in the data itself. You can set-up a grouping table else where with country in first column, region in second column. And then in the data, you can add an extra column and use VLOOKUP to fetch the region based on the country.

      Then feed this entire data (with extra column) to pivot table and use the extra column to group the data.

      • Catherine says:

        Hi Chandoo,

        Thank you for your prompt answer.
        I finally came to the same conclusion - after a rest 🙂 . I was probably too tired Friday evening (it was rather late), having spent hours in manipulating all my surveys data so as to pull rolling averages, make nice graphs and so on, and was trying to find a complex solution when there was a simple one.

        Thanks again,
        Catherine

  9. Tzu says:

    Hey,

    Great post!

    I for example have different database structure with the following fields :

    Date, Expense, Income, Sum (Income - Expense), Category (Sales, Cost of Goods and etc).

    Creating a P&L report for the whole year works great. Including gross margin % and etc.

    Though, creating P&L report by QTR/Month is becoming impossible since i get the following error : “This PivotTable report field is grouped. You cannot add calculated item to grouped filed.”

    Is there a solution for this kind of problem?
     

  10. klumsyboy says:

    Like Adam and Juanito, I also cannot ungroup.

    Would appreciate it if you can add a few more lines and a screenshot or two on where to put the mouse cursor to ungroup. 

  11. klumsyboy says:

    Hi,  I have figured out the ungrouping problem. One of the earlier steps was to group by month, if you pull the month back down to the column then right click and then select ungroup, then pull the month back up so you end up with just data source and budget/actual as the headings, then you can continue on.

  12. Kent Lau says:

    To solve the ungroup problem, my method is:
    Copy the "data" sheet to a whole new Excel workbook
    and directly work on Part 6.

    And since it is a fresh copy, Excel don't show me the "can't ungroup" problem. Hope this help.

    Thank you Yogesh for this wonderful tutorial.

    Kent, Malaysia

  13. felipe says:

    Just when i thought pivots were awesome i learn about inserting the calculated fields and that makes them more awesome. chandoo where have you been all my life.

  14. barrierone says:

    Hello - your P&L pivot version has really impressed my boss and would like to use it. I have applied it for a actual vs budget vs forecast model I have created. One problem. In your variance above the operating profit percent % variance shows 33.8% but I want it to show (0.01) point or the true diff from prior budget.

    I know I can add calculation to the side but boss would like to see it in pivot table.

    Please help
    Thanks

  15. barrierone says:

    I have a further query which may solve my above dilemma. Is it possible to add a column that calculates percent increase. So in the example above a new column would be added to show variance %.

    Any help would be appreciated.

    Thanks