November 2018
Beginner to intermediate
354 pages
6h 59m
English
Content preview from Hands-On Geospatial Analysis with R and QGIS
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Combining shapefiles in R
In this example, we'll merge two shapefiles of two districts called Dhaka and Gazipur. Now, BGD_adm3_data_re is a shapefile containing all of the districts of Bangladesh as separate polygons. We have the shapefile of Dhaka but not of Gazipur, so we'll create a shapefile of Gazipur before we start merging these two shapefiles. Let's load the required packages now:
library(sp)library(rgdal)library(maptools)
Now, we'll load the BGD_adm3_data_re.shp shapefile; as we have seen before, the NAME_3 field contains the names of the districts. We'll use this field to select the feature that corresponds to the Gazipur district:
map_bd = readOGR("F:/Hands-on-Geospatial-Analysis-Using-R-and-QGIS/Chapter04/Data","BGD_adm3_data_re") ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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