rts2 (version 0.10.2)

create_points: Create sf object from point location data

Description

Produces an sf object with location and time of cases from a data frame

Usage

create_points(
  data,
  pos_vars = c("lat", "long"),
  t_var = NULL,
  format = "%Y-%m-%d",
  verbose = TRUE
)

Value

An sf object of the same size as data

Arguments

data

data.frame with the x- and y-coordinate of case locations and the date of the case.

pos_vars

vector of length two with the names of the columns containing the y and x coordinates, respectively.

t_var

character string with the name of the column with the date of the case. If single-period analysis then set t_var to NULL.

format

character string with the format of the date specified by t_var. See strptime

verbose

Logical indicating whether to print information

Details

Given a data frame containing the point location and date of cases, the function will return an sf object of the points with the date information.

Examples

dp <- data.frame(y=runif(10,0,3),x=runif(10,0,3),date=paste0("2021-01-",11:20))
dp <- create_points(dp,pos_vars = c('y','x'),t_var='date')