distcenter {OasisR} | R Documentation |
A function to compute the distance from spatial units centroids to the center
Description
The function is based on sf package and it can be used with a shape file or an R spatial object (class sf, sfc or sfg).
Usage
distcenter(spatobj = NULL, folder = NULL, shape = NULL,
center = 1, distin = 'm', distout = 'm')
Arguments
spatobj |
a spatial object (class sf, sfc or sfg) containing geographic information |
folder |
a character vector with the folder (directory) name indicating where the shapefile with the geographic information is located. |
shape |
a character vector with the name of the shapefile (without the .shp extension) which contains the geographic information |
center |
the row number of the center |
distin |
input metric conversion, based on measurements package and includes conversions from 'm', 'km', 'inch', 'ft', 'yd', 'mi', 'naut_mi', etc. |
distout |
output metric conversion, based on measurements package and includes conversions to 'm', 'km', 'inch', 'ft', 'yd', 'mi', 'naut_mi', etc. |
Value
A vector with the distance to the center's centroid
See Also
Other spatial functions used for segregation indices
computation: area
, contig
,
perimeter
, distance
,
boundaries
Examples
distcenter(segdata, center = 46)
foldername <- system.file('extdata', package = 'OasisR')
shapename <- 'segdata'
distcenter(folder = foldername, shape = shapename, center = 19)