Package: geodiv 1.1.0

Annie C. Smith

geodiv: Methods for Calculating Gradient Surface Metrics

Methods for calculating gradient surface metrics for continuous analysis of landscape features.

Authors:Annie C. Smith, Phoebe Zarnetske, Kyla Dahlin, Adam Wilson, Andrew Latimer

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geodiv.pdf |geodiv.html✨
geodiv/json (API)
NEWS

# Install 'geodiv' in R:

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

Bug tracker:https://github.com/bioxgeo/geodiv/issues

Uses libs:

c++– GNU Standard C++ Library v3

Datasets:

normforest - NDVI errors for a portion of southwestern Oregon, USA.
orelevation - SRTM elevation for a portion of southwestern Oregon, USA.
orforest - NDVI for a portion of southwestern Oregon, USA.

On CRAN:

5.77 score 11 stars 1 packages 18 scripts 411 downloads 50 exports 34 dependencies

Last updated 1 years agofrom:668c9b209d. Checks:OK: 9. Indexed: yes.

Target	Result	Date
Doc / Vignettes	OK	Oct 13 2024
R-4.5-win-x86_64	OK	Oct 13 2024
R-4.5-linux-x86_64	OK	Oct 13 2024
R-4.4-win-x86_64	OK	Oct 13 2024
R-4.4-mac-x86_64	OK	Oct 13 2024
R-4.4-mac-aarch64	OK	Oct 13 2024
R-4.3-win-x86_64	OK	Oct 13 2024
R-4.3-mac-x86_64	OK	Oct 13 2024
R-4.3-mac-aarch64	OK	Oct 13 2024

Exports:.calculate_met_focal aacf area_above bearing_area bestfitplane fftshift find_flat findpeaks findvalleys fitplane flatsa focal_metrics height_ba pad_edges plot_ba_curve remove_plane rotate s10z sa sbi sci scl sdc sdq sdq6 sdr sds sfd sfd_simpsons sk sku slopecalc slopemeans smean sph spk sq srw ssc ssk std stxr surface_area sv svi svk texture_image window_metric zshift

Dependencies:class classInt cli DBI dplyr e1071 fansi generics glue KernSmooth lattice lifecycle magrittr MASS pillar pkgconfig pracma proxy R6 Rcpp RcppArmadillo rlang s2 sf spatial terra tibble tidyselect units utf8 vctrs withr wk zoo

geodiv Examples

Rendered fromgeodiv_Examples.pdf.asisusingR.rsp::asison Oct 13 2024.

Last update: 2023-10-04
Started: 2023-10-04

Citation

Development and contributors

Readme and manuals

Help Manual

Help page	Topics
Calculate Texture Metric for Single Pixel	.calculate_met_focal
Degree to Radian Conversion	.deg2rad
Estimate Maximum Correlation Length	.maxdist
Estimate Minimum Correlation Length	.mindist
Radian to Degree Conversion	.rad2deg
Estimate the Areal Autocorrelation Function	aacf
Area Above the Bearing Area Curve	area_above
Calculates the Rotated Bearing Area Curve	bearing_area
Finds the Best Fit Polynomial Surface	bestfitplane
Fourier Transform Shift	fftshift
Finds the Flattest Part of the Bearing Area Curve	find_flat
Find Local Peaks	findpeaks
Find Local Valleys	findvalleys
Calculate a Least Squares Polynomial Surface	fitplane
Flattened Surface Area	flatsa
Calculate Texture Metrics per Pixel	focal_metrics
Value of the Bearing Area Curve at a Specified Value	height_ba
NDVI errors for a portion of southwestern Oregon, USA.	normforest
SRTM elevation for a portion of southwestern Oregon, USA.	orelevation
NDVI for a portion of southwestern Oregon, USA.	orforest
Extend edges of a matrix.	pad_edges
Plots the Bearing Area Curve	plot_ba_curve
Removes the Best Fit Polynomial Surface	remove_plane
Rotates a matrix 180 degrees.	rotate
Ten-Point Height	s10z
Calculates the Average Roughness of a Surface	sa
Surface Bearing Index	sbi
Core Fluid Retention Index	sci
Calculate Correlation Length	scl
Height Intervals of the Bearing Area Curve	sdc
Root Mean Square Slope of Surface	sdq
Root Area Mean Square Slope of Surface	sdq6
Surface Area Ratio	sdr
Summit Density	sds
Calculate the fractal dimension of a raster.	sfd
Calculate the fractal dimension of a raster (C function).	sfd_
Simpson's Rule Empirical Area Under a Curve	simpsons
Core Roughness Depth	sk
Calculates the Kurtosis of Raster Values	sku
Determines the Slopes Along the Bearing Area Curve	slopecalc
Determines the Average Slope Along Larger Segments of the Bearing Area Curve	slopemeans
Calculates the Mean Peak Height of a Surface Image	smean
Calculates the Maximum Peak Height of a Surface Image	sph
Reduced Peak Height	spk
Calculates the Root Mean Square Roughness of a Surface	sq
Radial Wavelength Metrics	srw
Mean Summit Curvature	ssc
Calculates the Skewness of Raster Values	ssk
Texture Direction Metrics	std
Estimate Texture Aspect Ratio	stxr
Surface Area	surface_area
Calculates the Maximum Valley Depth of a Surface Image	sv
Valley Fluid Retention Index	svi
Reduced Valley Depth	svk
Calculate Texture Metrics per Pixel	texture_image
Calculate Texture Metric for Single Pixel	window_metric
Offset Raster or Matrix Values	zshift