complete_spacetime_cube: Convert spacetime object to spacetime cube

In sfdep: Spatial Dependence for Simple Features

Convert spacetime object to spacetime cube

Description

Given a spacetime object, convert it to a spacetime cube. A spacetime cube ensures that there is a regular time-series for each geometry present.

Usage

complete_spacetime_cube(x, ...)

Arguments

x	a spacetime object.
...	unused

Details

If observations are missing for a time period and location combination, columns will be populated with NAs.

See is_spacetime_cube() for more details on spacetime cubes.

Value

A spacetime object that meets the criteria of spacetime cube.

Examples

df_fp <- system.file("extdata", "bos-ecometric.csv", package = "sfdep")
geo_fp <- system.file("extdata", "bos-ecometric.geojson", package = "sfdep")

# read in data
df <- read.csv(df_fp, colClasses = c("character", "character", "integer", "double", "Date"))
geo <- sf::st_read(geo_fp)

# Create spacetime object called `bos`
bos <- spacetime(df, geo,
                 .loc_col = ".region_id",
                 .time_col = "time_period")

# create a sample of data
set.seed(0)
sample_index <- sample(1:nrow(bos), nrow(bos) * 0.95)
incomplete_spt <- bos[sample_index,]

# check to see if is spacetime cube
is_spacetime_cube(incomplete_spt)

# complete it again
complete_spacetime_cube(incomplete_spt)

sfdep documentation built on Jan. 11, 2023, 9:08 a.m.