Spatial feature interpolation

# S4 method for class 'giotto,missing'
interpolateFeature(
  x,
  spat_unit = NULL,
  feat_type = NULL,
  feats,
  spatvalues_params = list(),
  spat_loc_name = "raw",
  ext = NULL,
  buffer = 50,
  name_fmt = "%s",
  savedir = file.path(getwd(), "interp_rasters"),
  overwrite = FALSE,
  verbose = NULL,
  ...
)

# S4 method for class 'spatLocsObj,data.frame'
interpolateFeature(
  x,
  y,
  ext = NULL,
  buffer = 50,
  rastersize = 500,
  name_fmt = "%s",
  savedir = file.path(getwd(), "interp_rasters"),
  overwrite = FALSE,
  ...
)

Arguments

x: object containing coordinates to use interpolation with
spat_unit: (optional) spatial unit to use
feat_type: (optional) feature type to use
feats: character vector. Features to interpolate from the `giotto` object
spatvalues_params: list. Additional list of parameters to pass to [spatValues()] to help with data retrieval from `giotto` object
spat_loc_name: character. Name of spatial locations to use. Values to be interpolated are spatially mapped to these locations by cell_ID.
ext: `SpatExtent`. (optional) extent across which to apply the interpolation. If not provided, will default to the extent of the spatLocsObj expanded by the value of `buffer`. It can be helpful to set this as the extent of any polygons that will be used in aggregation.
buffer: numeric. (optional) default buffer to expand derived extent by if `ext` is not provided.
name_fmt: character. sprintf fmt to apply to `feats` when naming the resulting interpolation `giottoLargeImage` objects. Default is no change.
savedir: character. Output directory. Default is a new `interp_rasters` folder in working directory.
overwrite: logical. Whether raster outputs should be overwritten if the same `filename` is provided.
verbose: be verbose
...: additional params to pass downstream methods
y: data.frame-like. Values for interpolation. Must also have a `cell_ID` column and that matches with `x`.
rastersize: numeric. Length of major axis in px of interpolation raster to create.

Value

`giotto` method returns a `giotto` object with newly made appended feature interpolation rasters as `giottoLargeImages`

Details

The data.frame method returns a `giottoLargeImage` linked to an interpolated raster that is written to disk as GeoTIFF.