WebMay 1, 2024 · 1 Answer Sorted by: 3 You can consider to use the sf package to read the shapefile and plot the data. Filtering the sf object is the same as filtering a data frame. WebIt will set the spatial reference system if the layer has such metadata. If reading a shapefile, the data source name ( dsn= argument) is the folder (directory) where the shapefile is, and the layer is the name of the shapefile (without the .shp extension). For example to read bounds.shp from C:/Maps , do map <- readOGR(dsn="C:/Maps", layer ...
Removing empty polygon from sf object in R?
WebA filter file is a text file that is required to generate either a filtered shapefile or filtered surrogates from nonfiltered shapefiles. The filter file consists of blocks of keyword-value pairs (i.e., lines of the form keyword=value). There are two required keywords: ATTRIBUTE_NAME and ATTRIBUTE_TYPE. The value given for the … WebSep 4, 2015 · It has 34 fields R> class (wa.cd) [1] "SpatialPolygonsDataFrame" attr (,"package") [1] "sp" view raw shapefile_load.R hosted with by GitHub We want to select only the districts that cover Seattle, 7 and 9 which is as simple as subsetting seattle.only <- subset (wa.cd, CD113FP %in% c ('07', '09')) specsavers wetherby phone number
r - Filter shapefile polygons by area - Stack Overflow
WebJun 25, 2024 · I suggest you read the shapefile in via {sf} package; the sf objects are modified data frames, meaning you can manipulate them as necessary using the standard {tidyverse} techniques; including dplyr::filter () Consider this example, using the nc.shp shapefile shipped together with the {sf} package; note the entire content (blue lines) and … WebI figured out another way to filter using the zip_codes dataset from the noncensus package. I then substituted the line subdat<-dat [substring (dat$GEOID10, 1, 2) == "36",] for # get zip codes for New York ny_zips … WebJan 25, 2024 · There are two major packages for bringing in Census geographic boundary shapefiles into R: tidycensus and tigris. These packages allow users to directly download and use TIGER Line shapefiles from the Census Bureau. If you need a reminder of the major Census geographies, review Handout 1. tidycensus specsavers wetherby opening times