rbind: Combine one or more GVectors

In adamlilith/fasterRaster: Faster Raster and Spatial Vector Processing Using 'GRASS GIS'

Combine one or more GVectors

Description

rbind() combines two or more GVectors of the same type (points, lines, or polygons) and same coordinate reference system. You can speed operations by putting the vector that is largest in memory first in rbind(...). If the GVectors have data tables, these will also be combined using rbind() if their column names and data types match.

Usage

## S4 method for signature 'GVector'
rbind(..., deparse.level = 1)

Arguments

...	One or more GVectors.
deparse.level	See rbind().

Value

A GVector.

See Also

colbind(), addTable<-, dropTable()

Examples

if (grassStarted()) {

# Setup
library(sf)

# Rivers vector
madRivers <- fastData("madRivers")

# Convert sf to a GVector
rivers <- fast(madRivers)

# Convert GVector to data.frame or data.table
as.data.frame(rivers)
as.data.table(rivers)

# Subset rivers vector
rivers1 <- rivers[1:2]
rivers2 <- rivers[10:11]

# Concatenate rivers
riversCombo <- rbind(rivers1, rivers2)
riversCombo

# Add columns
newCol <- data.frame(new = 1:11)
riversCol <- colbind(rivers, newCol)
riversCol

# Remove table
riversCopy <- rivers
riversCopy # has data table
riversCopy <- dropTable(riversCopy)
riversCopy # no data table

# Add a new table
newTable <- data.frame(num = 1:11, letters = letters[1:11])
addTable(riversCopy) <- newTable
riversCopy

}

adamlilith/fasterRaster documentation built on Dec. 21, 2024, 2:04 a.m.