Wednesday, 1 February 2017

Session 6 :Visualization : Using R for Maps of India - state, district, taluka level maps


     Using R for Maps of India - state, district, taluka level maps



Displaying spatial data on maps is always interesting but most Visualisation tools do not offer facilities to create maps of India, especially at the state and lower levels. In this post, we will show how such maps can be made.The base data for such maps, the "polygons" that define the country, the states, the districts and even the talukas ( or sub-divisions) is available from an organisation called Global Administrative Areas or gadm.orgCountry level files for almost all countries are available in a variety of formats including R and these are at three different levels. For India, these files can be downloaded as IND_admN.RData where N = 1,2,3. These will form the raw data from which we will create our maps.








No comments:

Post a Comment