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All functions

PoR2Geo_azimuth()
Azimuth conversion from PoR to geographical coordinate reference system
PoR_coordinates()
PoR coordinates
PoR_crs()
PoR coordinate reference system
PoR_map()
Plot data in PoR map
PoR_shmax()
Direction of Maximum Horizontal Stress in PoR reference system
PoR_stress2grid()
Spatial interpolation of SHmax in PoR coordinate reference system
Q4_to_euler()
Euler angle/axis from quaternion
abs_vel()
Absolute Plate Velocity
rad2deg() deg2rad()
Degrees to Radians
angle_vectors()
Angle Between Two Vectors
axes()
Plot axes
circular_mean() circular_var() circular_sd() circular_median() circular_quantiles() circular_IQR()
Summary Statistics of Circular Data
circular_dispersion_boot()
Bootstrapped estimates for circular dispersion
circular_sd_error()
Standard Error of Mean Direction of Circular Data
compact_grid()
Compact smoothed stress field
confidence_angle() confidence_interval()
Confidence Interval around the Mean Direction of Circular Data
conjugate_Q4()
Conjugation of a Quaternion
longitude_modulo() latitude_modulo()
Coordinate Correction
cartesian_to_geographical() geographical_to_cartesian() geographical_to_spherical()
Coordinate Transformations
cartesian_to_spherical() spherical_to_cartesian() spherical_to_geographical()
Coordinate Transformations
cpm_models
Global model of current plate motions
deviation_norm()
Normalize Angle Between Two Directions
deviation_shmax()
Deviation of Observed and Predicted Directions of Maximum Horizontal Stress
circular_distance() circular_dispersion()
Circular distance and dispersion
dist_greatcircle()
Distance between points
distance_from_pb()
Distance from plate boundary
distance_mod()
Normalize angular distance on a sphere distance
earth_radius()
Earth's radius in km
equivalent_rotation()
Equivalent rotation
est.kappa()
Concentration parameter of von Mises distribution
euler_pole()
Euler pole object
euler_to_Q4()
Quaternion from Euler angle-axis representation for rotations
get_azimuth()
Azimuth Between two Points
get_distance()
Helper function to Distance from plate boundary
get_projected_pb_strike()
Helper function to get Distance from plate boundary
get_relrot()
Helper function to Equivalent rotation
iceland
Example stress data for outward-moving displaced plate boundary
is.Q4()
Check if object is quaternion
is.euler()
Check if object is euler.pole
kernel_dispersion()
Adaptive Kernel Dispersion
kuiper_test()
Kuiper Test of Circular Uniformity
line_azimuth() lines_azimuths()
Extract azimuths of line segments
mean_resultant_length()
Mean Resultant Length
model_shmax()
Theoretical Direction of Maximum Horizontal Stress in the geographical reference system.
norm_chisq()
Normalized Chi-Squared Test for Circular Data
normalize_Q4()
Quaternion normalization
nuvel1
NUVEL-1 Global model of current plate motions
nuvel1_plates
Plate Boundaries on the Earth
parse_wsm_quality() quantise_wsm_quality()
Numerical values to World Stress Map Quality Ranking
pb2002
Global model of current plate motions
plates
Plate Boundaries on the Earth
geographical_to_PoR() PoR_to_geographical()
Conversion between spherical PoR to geographical coordinate system
geographical_to_PoR_quat() PoR_to_geographical_quat()
Conversion between PoR to geographical coordinate system using quaternions
PoR_to_geographical_sf() geographical_to_PoR_sf()
Conversion between PoR to geographical coordinates of spatial data
prd_err()
Error of Model's Prediction
product_Q4()
Product of quaternions
projected_pb_strike()
Strike of the plate boundary projected on data point
quick_plot()
Plotting stress analysis results
geographical_to_PoR_raster() PoR_to_geographical_raster()
Conversion between PoR to geographical coordinate reference system of raster data
rayleigh_test()
Rayleigh Test of Circular Uniformity
relative_rotation()
Relative rotation between two rotations
roll_circstats()
Apply Rolling Functions using Circular Statistics
roll_normchisq() roll_rayleigh() roll_dispersion() roll_confidence() roll_dispersion_CI() roll_dispersion_sde()
Apply Rolling Functions using Circular Statistical Tests for Uniformity
distroll_circstats() distroll_confidence() distroll_dispersion() distroll_dispersion_sde()
Apply Rolling Functions using Circular Statistics
rose()
Rose Diagram
rose_line() rose_fan()
Lines and fans in rose diagram
rose_stats()
Show Average Direction and Spread in Rose Diagram
rotation_Q4()
Rotation of a vector by a quaternion
san_andreas
Example stress data for tangentially displaced plate boundary
atan2_spec() atan2d_spec()
Quadrant-specific inverse of the tangent
orthodrome() haversine() vincenty()
Angle along great circle on spherical surface
stress2grid()
Spatial interpolation of SHmax
stress_analysis()
Quick analysis of a stress data set
stress_colors()
Color palette for stress regime
eulerpole_paths() eulerpole_smallcircles() eulerpole_greatcircles() eulerpole_loxodromes()
Theoretical Plate Tectonic Stress Paths
superimposed_shmax()
SHmax direction resulting from multiple plate boundaries
tectonicr.colors()
Colors for input variables
tibet
Example stress data for inward-moving displaced plate boundary
vcross()
Vector cross product
rvm() dvm() pvm()
The von Mises Distribution
watson_test()
Watson's \(U^2\) Test of Circular Uniformity
weighted_rayleigh()
Weighted Goodness-of-fit Test for Circular Data