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mrbsizeR (version 1.0.1)

Scale Space Multiresolution Analysis of Random Signals

Description

A method for the multiresolution analysis of spatial fields and images to capture scale-dependent features. mrbsizeR is based on scale space smoothing and uses differences of smooths at neighbouring scales for finding features on different scales. To infer which of the captured features are credible, Bayesian analysis is used. The scale space multiresolution analysis has three steps: (1) Bayesian signal reconstruction. (2) Using differences of smooths, scale-dependent features of the reconstructed signal can be found. (3) Posterior credibility analysis of the differences of smooths created. The method has first been proposed by Holmstrom, Pasanen, Furrer, Sain (2011) .

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Version

Install

install.packages('mrbsizeR')

Monthly Downloads

207

Version

1.0.1

License

GPL-2

Maintainer

Thimo Schuster

Last Published

April 3rd, 2017

Functions in mrbsizeR (1.0.1)

turnmat

Turn matrix 90 degrees counter-clockwise.
mrbsizeRsphere

Multiresolution analysis of random signals for spherical data.
mrbsizeRgrid

Multiresolution analysis of random signals.
rmvtDCT

Sampling from marginal posterior multivariate t-distribution.
tridiag

Generate a tridiagonal matrix.
eigenLaplace

Generate eigenvalues of discrete Laplace matrix.
eigenQsphere

Generate eigenvalues of precision matrix Q on the surface of a sphere.
plot.CImapGrid

Plot of simultaneous credible intervals.
fftshift

Swap the quadrants or halves of a 2d matrix.
dctMatrix

Create a n-by-n discrete cosine transform matrix.
dftMatrix

Create a n-by-n discrete Fourier transform matrix.
ifftshift

Inverse FFT shift of a 2d matrix.
mrbsizeR

mrbsizeR: Scale space multiresolution analysis in R.
plot.smMeanSphere

Plotting of scale-dependent features on a sphere.
plot.smMeanGrid

Plotting of scale-dependent features.
CImap

Computation of simultaneous credible intervals.
MinLambda

Numerical optimization for finding appropriate smoothing levels.
TaperingPlot

Plot of tapering functions.
HPWmap

Computation of pointwise and highest pointwise probabilities.
plot.CImapSphere

Plotting of simultaneous credible intervals on a sphere.
plot.HPWmapGrid

Plotting of pointwise and highest pointwise probabilities.
plot.HPWmapSphere

Plotting of pointwise and highest pointwise probabilities on a sphere.
plot.minLambda

Plot of objective function for finding appropriate smoothing parameters.