Comments on: Doing the NY times Olympic medals by country year visualization in excel

By: Flu Trends Chart in Excel [Yes, we can edition] | Pointy Haired Dilbert: Learn Excel Online - Chandoo.org

Wed, 24 Feb 2010 06:02:45 +0000

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

By: Visualizing Search Terms on Travel Sites - Excel Bubble Chart | Pointy Haired Dilbert: Charting & Excel Tips - Chandoo.org

Sun, 15 Nov 2009 19:50:43 +0000

[...] How many Olympic Medals each country won in all those years? [...]

By: Create a Bubble Chart using Excel - Tutorial & Examples | Pointy Haired Dilbert: Charting & Excel Tips - Chandoo.org

Mon, 05 Oct 2009 09:32:59 +0000

[...] What excel bubble charts can do – Visualizing Olympic medals since 1900 [...]

By: Abhishek

Abhishek — Thu, 24 Sep 2009 09:44:23 +0000

Thanks a lot Chandoo for the explanation.

I have downloaded the stuff and tried to xplore it also. One question remains is when u mention height and width; they are in what units ( cm, inches etc).

Also a suggestion, why do not you also start training folks on xcelsius?

By: Chandoo

Chandoo — Wed, 12 Aug 2009 11:40:57 +0000

@Abhishek.. not sure if you still want the info.. I know I am almost 6 months late
The logic to convert lat and long to X and Y is like this:

x=(180+longitude)*(map-width/360)
y=(90-latitude)*(map-height/180)

You have to assume some values for Map width and height. download the example workbook and explore a bit. If you still have questions, drop a comment

By: Abhishek

Abhishek — Mon, 16 Mar 2009 16:06:30 +0000

Hi Chandoo, Great stuff.
First of all thanks a lot for the knowledge sharing. It is really commendable.
Secondly, I want to understand how this graph has been executed? Esp.. the conversion of lat & long to X & Y co ordinates – the formula and the following steps. I tried very hard but could not figure out the logic behind this graph.

Thanks

By: Chandoo

Chandoo — Mon, 01 Dec 2008 15:28:12 +0000

@xSaed: Thanks for exploring this. I have seen your article on maps with bars on it. I guess it is a cool way to chart data, although there are few limitations. Here another way you can do this type of chart:

— use a map where each country is a shape (see the other olympics post where I have used that technique to create a heat map)
– now copy paste the shapes and align them on top
– use the chart to shape technique shared in the “select and show charts” post to dynamically load bar charts to the new shapes on the top layer.
– bingo…

By: xSaed

xSaed — Mon, 01 Dec 2008 09:02:51 +0000

UPDATE: kinda got it , i use the combination of x,y scatter chart, in-cell redux & a little inspiration. i post it here. I will do some clean-up to give it a nicer look.

By: My Blog » Blog Archive » bar graph on a map… using Excel! WIP

My Blog » Blog Archive » bar graph on a map… using Excel! WIP — Mon, 01 Dec 2008 06:49:55 +0000

[...] task. On one of my web wandering session through excel related web pages, I stumbled upon this page from Chandoo’s PHD blog detailing on how to plot medals won by individual country. Primarily [...]

By: xSaed

xSaed — Mon, 01 Dec 2008 04:54:00 +0000

Dear chandoo,
i think i got a crude solution 4 that challenge.. will try it out & update u later.