grid_trim — grid_trim • FIShBOTR

Uses a shapefile or bounding box to trim the FIShBOT grid to the specified size

Usage

grid_trim(clip_shape)

clip_shape: can either be a polygon shapefile (NAD83), a bounding box in the format c(min_lat, max_lat, min_lon, max_lon) with all coordinates expressed in decimal degrees, a character vector of statistical areas in the format c("SA-514","SA-521") or a character vector of a single Ecosystem Production Unit (EPU) that can be one of the following: "EPU-GOM", "EPU-GB", "EPU-SS" or "EPU-MAB" for Gulf of Maine, Georges Bank, Scotian Shelf, and Mid-Atlantic Bight respectively. Note that the clip is exact. Grid cells that are intersected by the clip_shape will be proportioned in subsequent analyses. There is no default value for clip_shape.

Returns a trimmed version of the FIShBOT grid as a spatial dataframe


grid_trim(
  clip_shape=c(42,43,-72,-71)
  )
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