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geigen - Calculate Generalized Eigenvalues, the Generalized Schur Decomposition and the Generalized Singular Value Decomposition of a Matrix Pair with Lapack

Functions to compute generalized eigenvalues and eigenvectors, the generalized Schur decomposition and the generalized Singular Value Decomposition of a matrix pair, using Lapack routines.

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openblas

4.28 score 1 stars 13 dependents 356 scripts 1.4k downloads

RSEIS - Seismic Time Series Analysis Tools

Multiple interactive codes to view and analyze seismic data, via spectrum analysis, wavelet transforms, particle motion, hodograms. Includes general time-series tools, plotting, filtering, interactive display.

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4.18 score 3 stars 4 dependents 248 scripts 1.7k downloads

RPMG - Graphical User Interface (GUI) for Interactive R Analysis Sessions

Really Poor Man's Graphical User Interface, used to create interactive R analysis sessions with simple R commands.

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3.32 score 7 dependents 69 scripts 1.4k downloads

GEOmap - Topographic and Geologic Mapping

Set of routines for making map projections (forward and inverse), topographic maps, perspective plots, geological maps, geological map symbols, geological databases, interactive plotting and selection of focus regions.

Last updated

3.31 score 2 dependents 194 scripts 1.7k downloads

ProfessR - Grades Setting and Exam Maker

Programs to determine student grades and create examinations from Question banks. Programs will create numerous multiple choice exams, randomly shuffled, for different versions of same question list.

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2.93 score 43 scripts 338 downloads

RFOC - Graphics for Spherical Distributions and Earthquake Focal Mechanisms

Graphics for statistics on a sphere, as applied to geological fault data, crystallography, earthquake focal mechanisms, radiation patterns, ternary plots and geographical/geological maps. Non-double couple plotting of focal spheres and source type maps are included for statistical analysis of moment tensors.

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2.16 score 146 scripts 384 downloads

geomapdata - Data for Topographic and Geologic Mapping

Data sets included here are for use with package GEOmap. These include world map, USA map, Coso map, Japan Map.

Last updated

2.08 score 72 scripts 1.7k downloads

Rquake - Seismic Hypocenter Determination

Non-linear inversion for hypocenter estimation and analysis of seismic data collected continuously, or in trigger mode. The functions organize other functions from 'RSEIS' and 'GEOmap' to help researchers pick, locate, and store hypocenters for detailed seismic investigation. Error ellipsoids and station influence are estimated via jackknife analysis. References include Iversen, E. S., and J. M. Lees (1996)<doi:10.1785/BSSA0860061853>.

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1.75 score 56 scripts 258 downloads

PEIP - Geophysical Inverse Theory and Optimization

Several functions introduced in Aster et al.'s book on inverse theory. The functions are often translations of MATLAB code developed by the authors to illustrate concepts of inverse theory as applied to geophysics. Generalized inversion, tomographic inversion algorithms (conjugate gradients, 'ART' and 'SIRT'), non-linear least squares, first and second order Tikhonov regularization, roughness constraints, and procedures for estimating smoothing parameters are included.

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1.48 score 1 dependents 297 downloads

ClamR - Time Series Modeling for Climate Change Proxies

Implementation of the Wilkinson and Ivany (2002) approach to paleoclimate analysis, applied to isotope data extracted from clams.

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1.23 score 17 scripts 189 downloads

zoeppritz - Seismic Reflection and Scattering Coefficients

Calculate and plot scattering matrix coefficients for plane waves at interface.

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1.00 score 5 scripts 187 downloads