extract_zonalstats: Calculate Zonal statistics with gdalcubes

In mapme-initiative/mapme.vegetation: Tool chain for Sentinel-2 L2A processing

Calculate Zonal statistics with gdalcubes

Description

Calculate Zonal statistics with gdalcubes

Usage

extract_zonalstats(
  aoi = NULL,
  idcol = NULL,
  files = NULL,
  times,
  bands,
  zonalfuns,
  bbox,
  after,
  before,
  srs,
  dx,
  dy,
  dt,
  aggregation,
  resampling,
  outpath = NULL,
  threads = 1,
  ...
)

Arguments

aoi	A sf object with polygons / multipolygons
idcol	A column name of the aoi object uniquely identifying the polygons. The values found in this columns will be appended to the resulting sf object to allow feature identification.
files	Input raster files
times	Input dates
bands	Input band names
zonalfuns	A named list with functions for zonal statistics as elements
bbox	Bounding Box
after	Date after
before	Date before
srs	target spatial reference system as a string; can be a proj4 definition, WKT, or in the form "EPSG:XXXX"
dx	resolution x
dy	resolution y
dt	resoltion time
aggregation	aggregation method as string, defining how to deal with pixels containing data from multiple images, can be "min", "max", "mean", "median", or "first"
resampling	method used in gdalwarp when images are read, can be "near", "bilinear", "bicubic" or others as supported by gdalwarp (see https://gdal.org/programs/gdalwarp.html)
outpath	Path for the output GeoPakackage
threads	Number of threads
...	Additional arguments to st_write

Value

A sf object in long format with columns for the specified zonal statistics, and rows for each feature and input time.

Author(s)

Darius Görgen (MapTailor Geospatial Consulting GbR) [e-mail]
Maintainer: MAPME-Initiative [e-mail]
Contact Person: Dr. Johannes Schielein
Copyright: MAPME-Initiative
License: GPL-3

mapme-initiative/mapme.vegetation documentation built on Feb. 10, 2023, 10:51 p.m.