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R raster x cell sizes not regular11/10/2023 ![]() ![]() Works for both planar and angular (lon/lat) coordinate reference systems SpatialPolygons: Compute the area of the spatial features. This variation is greatest near the poles and the values are thus not very precise for very high latitudes. The width is smaller at the poleward side than at the equator-ward side of a cell. It is an approximation because area is computed as the height (latitudinal span) of a cell (which is constant among all cells) times the width (longitudinal span) in the (latitudinal) middle of a cell. Raster objects: Compute the approximate surface area of cells in an unprojected (longitude/latitude) Raster object. ![]() dimensions: Dimensions of a Raster* object.datasource: Are values in memory and/or on disk?.cover: Replace NA values with values of other layers.corLocal: Local correlation coefficient.coords: Coordinates of the Extent of a Raster object.Compare-methods: Compare Raster* objects.compareCRS: Partially compare two CRS objects.cellsFromExtent: Cells from extent, and vice versa.cellFrom: Get cell, row, or column number.boundaries: boundaries (edges) detection.blockSize: Block size for writing files. ![]() as.matrix: Get a vector, matrix, or array with raster cell values.as.logical-methods: Change cell values to logical or integer values.as.list: Create a list of RasterLayer objects.as.ame: Get a ame with raster cell values, or coerce.as.character: Character representation of a Raster or Extent object.Arith-methods: Arithmetic with Raster* objects.approxNA: Estimate values for cell values that are 'NA' by.animate: Animate layers of a Raster* object.alignExtent: Align an extent (object of class Extent).aggregate: Aggregate raster cells or SpatialPolygons/Lines. ![]()
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