Validate and normalize regular-grid data

xgeo_regular_grid() validates a complete 2D regular grid and returns the grid vectors and value matrix without creating a renderer-specific object.

Usage

xgeo_regular_grid(data, x = "x", y = "y", value = "value")

Arguments

data

A data frame containing x, y, and value columns.

x

Name of the x-coordinate column.

y

Name of the y-coordinate column.

value

Name of the value column.

Value

A list with x, y, and z, where z is a value matrix indexed by the returned x and y coordinates.

Examples

xgeo_regular_grid(
  data.frame(
    x_coord = c(0, 1, 0, 1),
    y_coord = c(0, 0, 1, 1),
    score = c(1, 2, 3, 4)
  ),
  x = "x_coord",
  y = "y_coord",
  value = "score"
)
#> $x
#> [1] 0 1
#> 
#> $y
#> [1] 0 1
#> 
#> $z
#>      [,1] [,2]
#> [1,]    1    3
#> [2,]    2    4
#>