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This map was somewhat easy to create.

First I found a website with a list of all the countries
where they drive on the Left side of the road, and read them
into a sas data set.

Then I got a list of all the countries in the sas/graph world map.
(I did this by getting the country 'id' numbers from the map, 
and then using a sas format to convert the number to a text name).

I merged the 2 datasets, assuming that all the countries that
don't drive on the left must drive on the Right.

Then it was a simple matter to plot the world map, and color the
countries based on which side they drive on.

One little enhancement - I used the 'html' option to add html
hover text, so you could easily see what the country names are.


This is based on data from ... here.

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