Methods for Calculating Gradient Surface Metrics

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Documentation for package ‘geodiv’ version 1.1.0

Help Pages

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