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MS Office Forum / Excel / Charting / October 2006

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Bubble charts

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KG - 25 Oct 2006 14:09 GMT
A colleague of mine was asking me to use a bubble chart to show the following
data for 2004, 2005, 2006 and 2007:

Sales Dollars
Margin Dollars
Margin as % of sales

I couldn't think of a way to display all these data on a bubble chart and
recommended a combination bar/line chart instead, with the margin % shown as
a line with its own Y2 axis.

Was I wrong and can the above data set be displayed on a bubble chart after
all?
Jon Peltier - 25 Oct 2006 23:21 GMT
The data can be displayed on a bubble chart. However, one of the harder
things for people to do is correlate the size of a bubble with a value. A
combination bar-line or a line on two axes chart is a better choice.

- Jon
-------
Jon Peltier, Microsoft Excel MVP
Tutorials and Custom Solutions
http://PeltierTech.com
_______

>A colleague of mine was asking me to use a bubble chart to show the
>following
[quoted text clipped - 12 lines]
> after
> all?
KG - 26 Oct 2006 01:08 GMT
Jon, suitability of a bubble chart aside: how can I even show 4 years of
sales $, margin $ and Margin $ on the same bubble chart?

> The data can be displayed on a bubble chart. However, one of the harder
> things for people to do is correlate the size of a bubble with a value. A
[quoted text clipped - 23 lines]
> > after
> > all?
Jon Peltier - 26 Oct 2006 02:47 GMT
Actually, that's one more variable than fits, if year is across the bottom
axis. I was writing something quick before dinner got cold.

- Jon
-------
Jon Peltier, Microsoft Excel MVP
Tutorials and Custom Solutions
http://PeltierTech.com
_______

> Jon, suitability of a bubble chart aside: how can I even show 4 years of
> sales $, margin $ and Margin $ on the same bubble chart?
[quoted text clipped - 28 lines]
>> > after
>> > all?
KG - 26 Oct 2006 19:13 GMT
Thanks Jon, I just wanted to be certain that I didn't misspeak when I told my
colleague that this data set would not fit into a single bubble chart.

> Actually, that's one more variable than fits, if year is across the bottom
> axis. I was writing something quick before dinner got cold.
[quoted text clipped - 38 lines]
> >> > after
> >> > all?
Andy Pope - 26 Oct 2006 19:25 GMT
If you were going to use a bubble would it not be

Years as series
Sales Dollars on x or y
Margin Dollars on y or x
Margin as % of sales bubble size

This assumes a single value/bubble for each year.

Cheers
Andy

> Thanks Jon, I just wanted to be certain that I didn't misspeak when I told my
> colleague that this data set would not fit into a single bubble chart.
[quoted text clipped - 41 lines]
>>>>>after
>>>>>all?

Signature

Andy Pope, Microsoft MVP - Excel
http://www.andypope.info

Jon Peltier - 26 Oct 2006 21:11 GMT
Andy -

It would work this way, and that might be what I was thinking, but most
times the chart only makes sense with years across X.

- Jon
-------
Jon Peltier, Microsoft Excel MVP
Tutorials and Custom Solutions
http://PeltierTech.com
_______

> If you were going to use a bubble would it not be
>
[quoted text clipped - 55 lines]
>>>>>>after
>>>>>>all?
David F Cox - 28 Oct 2006 15:13 GMT
It is almost certainly not worth the effort, but you could have a bubble
representing margin inside a bubble representing sales  and use colouring to
represent the percentage. This sort of chart impresses people with your
knowledge without imparting much of it.

>A colleague of mine was asking me to use a bubble chart to show the
>following
[quoted text clipped - 12 lines]
> after
> all?
Jon Peltier - 29 Oct 2006 03:55 GMT
> ... without imparting much of it.

LOL

- Jon
-------
Jon Peltier, Microsoft Excel MVP
Tutorials and Custom Solutions
http://PeltierTech.com
_______

> It is almost certainly not worth the effort, but you could have a bubble
> representing margin inside a bubble representing sales  and use colouring
[quoted text clipped - 17 lines]
>> after
>> all?
 
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