Creating maps using R, Deedle and F# type providers

http://www.clear-lines.com/blog/post/Create-maps-using-R-Deedle-and-FSharp-type-providers.aspx

by tellarin • 12 years ago

71 16 12 years ago

minimaxir3• 12 years ago

A great and easier package to work with for creating maps using pure R is ggmaps: http://journal.r-project.org/archive/2013-1/kahle-wickham.pd...

Here's an example map of San Francisco I made using ggmaps: http://i.imgur.com/zdetaKw.png

(The map was made for http://minimaxir.com/2014/04/san-francisco/ if you want more context.)

kvb2• 12 years ago

What makes it easier?

minimaxir3• 12 years ago

Looking at the code used in the OP, ggmaps does not require a dependy on a different program (and it also used a .dll, which may make it difficult to use cross-platform as well.). ggmaps also used ggplot2 syntax, making it easy for style customization which I don't see in the original code.

Although, using a shapefile adds another R package dependency, but not much more LOC. Alternatively, use the maps package, which also contains data for reconstructing popular maps like the world map used.

rjzzleep• 12 years ago

mainly talking about f# here...

this looks like the classic example for f# type providers. there are a few talks tomas petricek[1] has given on that topic. the relevant talk is one of the skillsmatter talks[2]

i'm not sure if they're all publically available, but they used to be at least.

edit: but basically the summary is that you can do really cool things with type providers and have your ide(visual studio) give you full completion on parts of data you want to analyze. kinda like re# but without having to generate half a million lines of xml for web services.

there's also book coming up with chapters about it from tomas [3]

[1] http://tomasp.net/

[2] https://skillsmatter.com/members/tomasp#skillscasts

[3] http://www.manning.com/petricek2/

platz3• 12 years ago

I've heard a lot about the amazing-ness of type providers, but no-one seems to know how they work aside from saying something betwen they generate types for you, and they generate intellisense for you.

I'm sure it all makes sense once you go ahead and play with it, but it looks like I'll have to be watching some videos to grok what is really going on.

kvb2• 12 years ago

Are you curious about using them or implementing them? What level of detail are you looking for?

tpetricek• 12 years ago

Thanks for pointing to my talks :-) I think the best recording available is on Channel 9 [1]. Though I really like this Mathias's demo, because it puts all the awesomeness in just 2 minutes, while I needed a full hour!

[1] http://channel9.msdn.com/posts/Understanding-the-World-with-...

dalek2point3• 12 years ago

and remember if you need a basemap that is more than simply all the countries in the world, you can use openstreetmap.org! Downloads of raw data in various forms can be found at : download.geofabrik.de/

Creating maps using R, Deedle and F# type providers

Related Stories