How Many Bubbles are Too Many Bubbles?

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Bubble Chart Mistakes - Dont use too many bubbles in your graphsIn How Many Links are Too Many Links, O’Reilly radar shows us this unfortunate bubble chart. (click on the image to see a bigger version)

I say unfortunate for the lack of a better word without sounding harsh.

Just in case you are wondering what that chart is trying to tell (which is perfectly fine)

Nick Bilton, who constructed this chart, got curious and went to the top 98 websites in the world and found out how many links they have on their home page. Then he used charting tools like processing to create the bathing bubbles you are seeing aside.

The conclusion ?

Too many bubbles can drown you. And also, top web sites have lots and lots of links on their home pages.

But seriously, apart from looking really pretty, does this chart actually provide that conclusion?

I think Nick and the O’Reilly radar team could have much better with a simpler and fortunate chart selection.

A histogram of # of links on popular home pages

like the one below would have been very easy to read and get the point.

Histogram - Links on Popular Home Pages - a better alternative

I showed some dummy data in the histogram, but when you create 2 histograms, one for popular sites (ranked below 5000) and one for not-so-popular sites (>5000) you can easily make the point and use the bubbles for a warm bath.

A better alternative is to show a scatter chart

with site rank on one axis and # of links on home page on another axis, that way a conclusion like Top Sites Links More can be easily established.

Scatter Graph - Showing that Top Sites Link More

Even a bar chart with number of links on each home page

could have been better than umpteen bubbles
Ordered Bar Graph Showing Number of Links on Home Pages
You could easily add a bar with “avg. number of links on non-popular sites” to contrast the linking behaviour of large sites wrt small sites.

But alas, we are treated to an unfortunate bubble chart that does nothing but look pretty (and ridiculously large)

What do you think ? How many bubbles are too many ?

Recommended Reading on Bubble Charts: Travel Site Search Patterns in Bubbles, Good Bubble Chart about the Bust. Olympic Medals per Country

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27 Responses to “Sum of Values Between 2 Dates [Excel Formulas]”

  1. dexter says:

    I would apply a filter and use function subtotal, with option 9. This way you can see multiple views based on the filter.

  2. Michael Azer says:

    hey Chandoo, the solutions you proposed are very efficient, but if I wanted to be fancy I would do it this way .. the references are as your example workbook.
    =SUM(INDIRECT("C"&(MATCH(F5,B5:B95)+4)):INDIRECT("C"&(MATCH(F6,B5:B95)+4)))

  3. Luke M says:

    I like things simple:
    =SUMIF(B5:B95,">="&F5,C5:C95)-SUMIF(B5:B95,">"&F6,C5:C95)

  4. Matt S says:

    use something like: =SUM(OFFSET(B1,0,0,DATEDIF(A1,D1,"d")))
    and have D1 be the date that I want to sum to.

  5. Tom J says:

    In Excel 2003 (and earlier) I'd use an array formula to calculate either with nested if statements (as shown here) or with AND.

    {=SUM(IF(B5:B95>F5,IF(B5:B95<F6,C5:C95,0),0))}

    Note that I truly made this for BETWEEN the dates, not including the dates

  6. Andrew says:

    I turned the data set into a table named Dailies.
    I named the two limits StartDate and EndDate.

    And used an array formula:

    {=SUM((Dailies[Date]>=StartDate)*(Dailies[Date]<=EndDate)*Dailies[Sales])}

  7. Frank Linssen says:

    If I would still be using the old Excel I would do it as follows:

    SUMIF($B$5:$B$95,"<="&H6,$C$5:$C$95)-SUMIF($B$5:$B$95,"<"&H5,$C$5:$C$95)

    Works as simple as it is.

    Regards

  8. ikkeman says:

    =sum(index(c:c,match(startdate,c:c,1)+1):index(c:c,match(enddate,c:c,1))

  9. ikkeman says:

    =sum(index(c:c,match(startdate,b:b,1)+1):index(c:c,match(enddate,b:b,1))

  10. ram says:

    Great examples and thanks to Chandoo. You have simplified my work.

  11. Rony says:

    Hi! great tips I have found in your page, have you seen this
    http://runakay.blogspot.com/2011/10/searching-in-multiple-excel-tabs.html

  12. [...] I'm not sure I understand your question fully, but have a look at this: Sum of Values Between 2 Dates [Excel Formulas] | Chandoo.org - Learn Microsoft Excel Online [...]

  13. Amanda says:

    Thank you! Thank you! Thank you!

  14. abdalurhman says:

    =SUMIF(A2:A11;">="&B13;B2:B11)-SUMIF(A2:A11;"<"&A11;B2:B11)

  15. Eliza says:

    awesome... thank yoo Chandoo!

  16. dockhem says:

    which is most efficient and fast, if all are efficient ?

  17. jmassiah says:

    Thank you for this formula, I've just spent ages trying to find something to work on my data, I knew it would be possible! Don't care if others think there are easier/other ways to do it, you explained it so I understood it and could apply it to what I was doing so I'm happy!

  18. Nagaraju says:

    The above said example is awesome for calculating values between dates,

    can you pls let know how to calculate sale values if we have 10 sales boys for
    ex: 1,rama
    2,krishna
    3,ashwin
    4,naga
    5,suresh

    how much rama sale value between 1/jan/2015 to 10/jun/15
    how much krishna sale value between 10/jan/2015 to 15/july/2015
    i think you understood can you pls let me know the formula for how to calculate the sale between diffrent sale man sale value from master data file

    Thanks,
    Nagaraju

  19. Viv says:

    Hi

    I have a list of people's names in column A, I have a list of dates in column B which records the dates they have been off sick, in column C I have either 1 if it is a full sick day or 0.5 if it is a half day.

    What I would like to do is to add up the number of dates a specific person has been off within two dates.

    For example, I want to look at my list of names and to find Joe Bloggs (column A), then add up all his sick days (column C). The start date will be in cell E1 and the end date will be in F1.

    If this possible using SUMIFS?

    List of names are in range A2:A100

    List of dates in B2:B100

    List of sick days (either 0.5 or 1 in C2:C100

    The start date is in cell E2

    The end date is in cell F2

    Your help would be greatly appreciated.

    • Loknathan says:

      Yes, with the help of SUMIFS you can have the solution.
      Note: you need have an extra col. D2 where you will input Name of the person.
      =SUMIFS(C2:C100,A2:A100,D2,C2:C100,">="&E2,C2:C100,"<"&F2)

      Col. A Col. B Col. C Col.D Col. E Col. F
      Name Date Sales
      ABC 28-Jun-11 1 MNO 28-Jun-11 25-Sep-11
      XYZ 29-Jun-11 0.5
      MNO 30-Jun-11 1
      PQR 1-Jul-11 1

      • Loknathan says:

        Typo ERROR / Correction in formula:
        Yes, with the help of SUMIFS you can have the solution.
        Note: you need have an extra col. D2 where you will input Name of the person.
        =SUMIFS(C2:C100,A2:A100,D2,B2:B100,">="&E2,B2:B100,"<"&F2)

  20. Viv says:

    Hi

    I have a list of people's names in column A, I have a list of dates in column B which records the dates they have been off sick, in column C I have either 1 if it is a full sick day or 0.5 if it is a half day.

    What I would like to do is to add up the number of dates a specific person has been off within two dates.

    For example, I want to look at my list of names and to find Joe Bloggs (column A), then add up all his sick days (column C). The start date will be in cell E1 and the end date will be in F1.

    If this possible using SUMIFS?

    List of names are in range A2:A100

    List of dates in B2:B100

    List of sick days (either 0.5 or 1 in C2:C100

    The start date is in cell E2

    The end date is in cell F2

    Your help would be greatly appreciated.

    Viv

  21. AC says:

    Thanks for this - it solved the problem that I was having. However can someone please explain to me why the "" needs to be around >= and <= as well as why we need to add & in order for the formula to work? Thanks in advance!

  22. Ufoo says:

    This formula works perfectly as well. Any ideas?: =SUM(INDEX(C5:C95,MATCH(H5,B5:B95,1)):INDEX(C5:C95,MATCH(H6,B5:B95,1)))

  23. Ufoo says:

    ikkeman had posted the same thing.

  24. murray says:

    I am trying to sum total a range of cells between date ranges ie column n has $ amounts column d has the transaction dates ie 1/3/2015 or 25/3/2015 or 25/4/2015 column b has the text saying drp or distribution - reinv

    In another cell I am trying to sum or total (in column n) with the value of a range of different dates (column d) that contain different text (column b) ie cell n48 is 50, n65 is 85, n165 is 36

    with the dates ie cell d48 is 1/3/2015, d65 is 25/3/2015 and d165 is 25/4/2015

    with different text that says drp or distribution - reinv ie cell b48 is drp, b65 is distribution - reinv, b165 is drp

    If I wanted to sum the amounts between 1/3/2015 to 31/3/2015 with drp then the total would be 50. Also if I wanted to sum the amounts between 1/4/2015 to 30/4/2015 with drp the sum total would be 36 If I wanted to sum the amounts between 1/3/2015 to 31/3/2015 with drp and distribution - reinv the sum would be 115

    What would the formula be for these different questions

    hope you can help, it has been driving me nuts and cant work it out

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