Variable: a named-dimension array

The fundamental building block. A Variable is an N-dimensional array that knows the names of its dimensions. It does NOT know about coordinates - that's DataArray's job.

Usage

Variable(dims = character(0), data = NULL, attrs = list(), encoding = list())

Arguments

dims: Character vector of dimension names.
data: An R array (or matrix, or vector with dim attribute), or a lazy chunked array from the altarr package (see lazy-data).
attrs: Named list of arbitrary metadata.
encoding: Named list of on-disk encoding info (scale_factor, etc.).

Examples

# A 3D temperature field
temp_data <- array(rnorm(365 * 180 * 360), dim = c(365, 180, 360))
v <- Variable(
  dims = c("time", "lat", "lon"),
  data = temp_data,
  attrs = list(units = "K", long_name = "Temperature")
)
v
#> <Variable> (time: 365, lat: 180, lon: 360) double
#>   Attributes:
#>     units: K
#>     long_name: Temperature

# Scalar variable
s <- Variable(dims = character(), data = array(42))
s
#> <Variable> scalar double
#>   value: 42