read_eds: Read Edges of a Decoration

In iconr: Graphical and Spatial Analysis for Prehistoric Iconography

Description

Read edges' information from a file including all edges and extract edges of one decoration. Accepted formats are tab separated values ('tsv'), semicolon separated values ('csv'), or shapefile ('shp').

Usage

read_eds(site,
         decor,
         dir = getwd(),
         edges = "edges",
         nodes = "nodes",
         format = "tsv")

Arguments

site	Name of the site.
decor	Name of the decoration.
dir	Path to the working folder, by default it is the working directory.
edges	Name of the edges file (a dataframe or a shapefile).
nodes	Name of the nodes file (a dataframe or a shapefile).
format	File extension indicating a file format from 'tsv' (tab separated values), 'csv' (semicolon separated values) or 'shp' (shapefile). For 'tsv' and 'csv' the coordinates of the edges will be calculated from the same decoration's node dataframe.

Details

Subset the dataframe of edges depending on 'site' and 'decor'.

Value

Dataframe of graph edges, including at least the columns "site", "decor", "a", "b", "xa", "ya", "xb", "yb", with values for each edge (row).

Examples

# Set data folder
dataDir <- system.file("extdata", package = "iconr")

# Read .tsv file
eds.df <- read_eds(site = "Cerro Muriano", decor = "Cerro Muriano 1",
                   dir = dataDir, edges = "edges", format = "tsv")
eds.df
## Dataframe of edges

# Read shapefile
eds.df <- read_eds(site = "Cerro Muriano", decor = "Cerro Muriano 1",
                   dir = dataDir, edges = "edges", format = "shp")
eds.df
## Dataframe of edges

iconr documentation built on Feb. 16, 2021, 5:06 p.m.