Version 1.2 of inegiR is now on CRAN so I thought I’d write a few words/vignette about what’s new or different, if at all. By the way, i’m writing in english because more people seem to read r-bloggers than my blog (no surprise there), however the pdf manual and most documentation is still in spanish.
Thanks to Diego Valle who reported a slight bug, the more random dates (“bienal” and “decenal”) were not being parsed correctly.
Also added warnings and error handling when the data doesn’t exist for municipalities (issue is here)
Grids
Thanks to Arturo Cardenas who unwittingly built a new function for the DENUE part of the package that’s incorporated in this version.
As he wrote in his blog, the denue API only allows us to download businesses in a radious of a maximum of 5 kilometers. However, we can get around this limitation by asking the API a series of coordinates that we know overlap each other to create a square of a larger size. This is a picture, taken from that post, detailing what I mean:
Each circle is, of course 5 kms in radius and so the API would give us everything inside.
The hacer_grid() function helps us in the process by creating a data.frame with a series of coordinates that create a grid like the one in the image if we supply it 2 corners in latitud and longitud.
But the more powerful denue_grid() does the interesting part. Using the former function, it also downloads the denue data and returns a unique business data.frame in that grid (if you want duplicates as well, you can eliminate the unique part by setting the unicos = FALSE parameter)
Example with Grids
Here is an example with the city of Monterrey, let’s say I want all the businesses in San Pedro (a municipality that is part of …read more
Source:: r-bloggers.com