Excel concatenate() is seriously crippled, it can add 2 or more strings together, as long as they are supplied as separate parameters. This means, when you have a range of cells with text which you want to add up to create a large text, you need to write an ugly looking biggish concatenate() or use ‘&’ operator over and again.
I felt bored enough the other day to write a better concatenate(), one that can accept a range as input and output one text with all the contents of the input range. What more you can use this to delimit the input range with your own favorite character.
For example, if each of the 7 cells in a1:a7 have “a”, “b”, “c”, “d”, “e”, “f”, “g”, if you want to add all of them up using concatenate you would have to write concatenate(a1,a2,a3,a4,a5,a6,a7) which can be painful if you are planning to do this over a large range or something.
Instead, you can use concat(a1:a7) by installing the UDF (User defined function) I have written. Its nothing miraculous or anything, it just does the dirty job of going through the range for you. If you want to delimit the input range with a comma just use concat(a1:a7,",") to get the out of a,b,c,d,e,f,g Just download the concat() UDF excel add-in and double click on it to install it. If you are little weary of installing UDFs / Macros from third parties, copy past the below excel code in a new sheet’s VB editor and save the sheet as an excel addin (.xla extension)
Added on Aug 26, 2008: I have updated the code, copy it again if you have the old one
Function concat(useThis As Range, Optional delim As String) As String
' this function will concatenate a range of cells and return one string
' useful when you have a rather large range of cells that you need to add up
Dim retVal, dlm As String
retVal = ""
If delim = Null Then
dlm = ""
Else
dlm = delim
End If
For Each cell In useThis
if cstr(cell.value)<>"" and cstr(cell.value)<>" " then
retVal = retVal & cstr(cell.Value) & dlm
end if
Next
If dlm <> "" Then
retVal = Left(retVal, Len(retVal) - Len(dlm))
End If
concat = retVal
End Function
Did you find this useful? Are you looking for some other excel UDFs as well, drop a comment, I am a busy coffee drinker, but between the sips I can whip out ugly looking but functional vb code 😛
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?