stars (version 0.6-0)

c.stars: combine multiple stars objects, or combine multiple attributes in a single stars object into a single array

Description

combine multiple stars objects, or combine multiple attributes in a single stars object into a single array

Usage

# S3 method for stars
c(
  ...,
  along = NA_integer_,
  try_hard = FALSE,
  nms = names(list(...)),
  tolerance = sqrt(.Machine$double.eps)
)
# S3 method for stars_proxy
c(
  ...,
  along = NA_integer_,
  along_crs = FALSE,
  try_hard = FALSE,
  nms = names(list(...)),
  tolerance = sqrt(.Machine$double.eps)
)

Value

a single stars object with merged (binded) arrays.

Arguments

...

object(s) of class star: in case of multiple arguments, these are combined into a single stars object, in case of a single argument, its attributes are combined into a single attribute. In case of multiple objects, all objects should have the same dimensionality.

along

integer; see read_stars

try_hard

logical; if TRUE and some arrays have different dimensions, combine those that dimensions matching to the first array

nms

character; vector with array names

tolerance

numeric; values used in all.equal to compare dimension values combine those that dimensions matching to the first array

along_crs

logical; if TRUE, combine arrays along a CRS dimension

Details

An error is raised when attempting to combine arrays with different measurement units into a single array. If this was intentded, drop_units can be used to remove units of a stars object before merging.

Examples

tif = system.file("tif/L7_ETMs.tif", package = "stars")
x = read_stars(tif)
(new = c(x, x))
c(new) # collapses two arrays into one with an additional dimension
c(x, x, along = 3)