Package: gfcanalysis 1.8.0

Matthew Cooper

gfcanalysis: Tools for Working with Hansen et al. Global Forest Change Dataset

Supports analyses using the Global Forest Change dataset released by Hansen et al. gfcanalysis was originally written for the Tropical Ecology Assessment and Monitoring (TEAM) Network. For additional details on the Global Forest Change dataset, see: Hansen, M. et al. 2013. "High-Resolution Global Maps of 21st-Century Forest Cover Change." Science 342 (15 November): 850-53. The forest change data and more information on the product is available at <http://earthenginepartners.appspot.com>.

Authors:Alex Zvoleff [aut], Matthew Cooper [cre]

gfcanalysis_1.8.0.tar.gz
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gfcanalysis.pdf |gfcanalysis.html✨
gfcanalysis/json (API)
NEWS

# Install 'gfcanalysis' in R:

install.packages('gfcanalysis', repos = c('https://azvoleff.r-universe.dev', 'https://cloud.r-project.org'))

Bug tracker:https://github.com/azvoleff/gfcanalysis/issues

Datasets:

gfc_tiles - Grid of tiles used for the GFC product
test_poly - Polygon outlining TEAM site in Caxiuanã, Brazil

On CRAN:

4.93 score 17 stars 33 scripts 399 downloads 1 mentions 11 exports 60 dependencies

Last updated 1 years agofrom:6a5d4b8cd4. Checks:5 OK, 3 NOTE. Indexed: yes.

Target	Result	Latest binary
Doc / Vignettes	OK	Jan 31 2025
R-4.5-win	NOTE	Jan 31 2025
R-4.5-mac	NOTE	Jan 31 2025
R-4.5-linux	NOTE	Jan 31 2025
R-4.4-win	OK	Jan 31 2025
R-4.4-mac	OK	Jan 31 2025
R-4.3-win	OK	Jan 31 2025
R-4.3-mac	OK	Jan 31 2025

Exports:animate_annual annual_stack calc_gfc_tiles calc_pixel_areas download_tiles extract_gfc gfc_stats plot_gfc scale_toar threshold_gfc utm_zone

Dependencies:animation bitops class classInt cli colorspace curl DBI deldir e1071 fansi farver geosphere ggplot2 glue gtable hexbin interp isoband jpeg KernSmooth labeling lattice latticeExtra lifecycle magick magrittr MASS Matrix mgcv munsell nlme pillar pkgconfig plyr png proxy R6 raster rasterVis RColorBrewer Rcpp RcppEigen RCurl rlang s2 scales sf sp stringi stringr terra tibble units utf8 vctrs viridisLite withr wk zoo

Citation

Development and contributors

Readme and manuals

Help Manual

Help page	Topics
Plot an animation of forest change within a given area of interest (AOI)	animate_annual
Generate an annual stack of forest change from GFC product	annual_stack
Calculate the GFC product tiles needed for a given AOI	calc_gfc_tiles
Calculates the pixel area for each line of a raster	calc_pixel_areas
Check if aoi is an sf or sp type object If sp, convert to sf and return	check_aoi
Download a set of GFC tiles	download_tiles
Extracts GFC data for a given AOI	extract_gfc
Produce a table of forest cover change statistics for a given AOI	gfc_stats
Grid of tiles used for the GFC product	gfc_tiles
Plot forest change (relative to 2000) for a given year	plot_gfc
Scales a raster by the area of each pixel in meters	scale_by_pixel_area
Scale the first or last top of atmosphere (TOA) reflectance images	scale_toar
Polygon outlining TEAM site in Caxiuanã, Brazil	test_poly
Threshold the GFC product	threshold_gfc
Given a spatial object, calculate the UTM zone of the centroid	utm_zone utm_zone,numeric,numeric,logical-method utm_zone,numeric,numeric-method utm_zone,Spatial,missing,logical-method utm_zone,Spatial,missing-method