brainwaver: Basic wavelet analysis of multivariate time series with a visualisation and parametrisation using graph theory.

This package computes the correlation matrix for each scale of a wavelet decomposition, namely the one performed by the R package waveslim (Whitcher, 2000). An hypothesis test is applied to each entry of one matrix in order to construct an adjacency matrix of a graph. The graph obtained is finally analysed using the small-world theory (Watts and Strogatz, 1998) and using the computation of efficiency (Latora, 2001), tested using simulated attacks. The brainwaver project is complementary to the camba project for brain-data preprocessing. A collection of scripts (with a makefile) is avalaible to download along with the brainwaver package, see information on the webpage mentioned below.

Author
Sophie Achard <sophie.achard@gipsa-lab.inpg.fr>
Date of publication
2012-12-02 07:08:10
Maintainer
Sophie Achard <sophie.achard@gipsa-lab.inpg.fr>
License
GPL (>= 2)
Version
1.6
URLs

View on CRAN

Man pages

brain
Time series obtained by an fMRI experiement on the brain
choose.thresh.nbedges
Threshold associated to a given number of edges.
compute.FDR
False Discovery Rate computation
const.adj.list
Computation of the list of adjacency matrices
const.adj.mat
Computation of the adjacency matrix
const.cor.list
Computation of the list of correlation matrices
const.var.list
Computation of the list of variance vectors
correlations.to.adjacencies
Produce adjencency matrices for a given number of edges
equadist.rand.sw
Small-world parameters for a simulated graph given its degree...
fitting
Fitting laws with maximum likelihood
global.efficiency
Graph efficiency
p.value.compute
Computation of the p-value for a given hypotheses test
rand.eff
Efficiency for simulated graphs
random.attack
Attack of graphs
rand.sw
Small-world parameters for simulated random graphs
read.convert_1_2
Conversion of already edited objects from version 1 to 2
read.cor.txt
Exportation and importation of internal objects.
read.var.txt
Exportation and importation internal objects.
reg.sw
Small-world parameters for a lattice graph
sim.rand
Simulation of graphs
small.world
Computation of some quantitive parameters given in the...
wave.trans
Computation of the wavelet transform
young
Time series obtained by an fMRI experiement on the brain

Files in this package

brainwaver
brainwaver/MD5
brainwaver/NAMESPACE
brainwaver/src
brainwaver/src/connexity_small_world.c
brainwaver/DESCRIPTION
brainwaver/R
brainwaver/R/rand.eff.R
brainwaver/R/p.value.compute.R
brainwaver/R/choose.thresh.nbedges.R
brainwaver/R/const.adj.mat.R
brainwaver/R/const.cor.list.R
brainwaver/R/sim.reg.R
brainwaver/R/read.convert_1_2.R
brainwaver/R/wave.trans.R
brainwaver/R/efficiency.R
brainwaver/R/small.world.R
brainwaver/R/read.cor.txt.R
brainwaver/R/reg.sw.R
brainwaver/R/const.adj.list.R
brainwaver/R/save.var.txt.R
brainwaver/R/compute.FDR.R
brainwaver/R/sim.rand.R
brainwaver/R/node.attack.R
brainwaver/R/read.var.txt.R
brainwaver/R/random.attack.R
brainwaver/R/reg.eff.R
brainwaver/R/const.var.list.R
brainwaver/R/targeted.attack.R
brainwaver/R/save.cor.txt.R
brainwaver/R/correlations.to.adjacencies.R
brainwaver/R/rand.sw.R
brainwaver/R/fitting.R
brainwaver/R/equadist.rand.sw.R
brainwaver/R/sim.equadist.R
brainwaver/R/zzz.R
brainwaver/man
brainwaver/man/const.adj.mat.Rd
brainwaver/man/compute.FDR.Rd
brainwaver/man/rand.sw.Rd
brainwaver/man/wave.trans.Rd
brainwaver/man/const.adj.list.Rd
brainwaver/man/p.value.compute.Rd
brainwaver/man/read.convert_1_2.Rd
brainwaver/man/fitting.Rd
brainwaver/man/equadist.rand.sw.Rd
brainwaver/man/small.world.Rd
brainwaver/man/correlations.to.adjacencies.Rd
brainwaver/man/read.cor.txt.Rd
brainwaver/man/global.efficiency.Rd
brainwaver/man/reg.sw.Rd
brainwaver/man/young.Rd
brainwaver/man/const.var.list.Rd
brainwaver/man/brain.Rd
brainwaver/man/rand.eff.Rd
brainwaver/man/const.cor.list.Rd
brainwaver/man/random.attack.Rd
brainwaver/man/read.var.txt.Rd
brainwaver/man/sim.rand.Rd
brainwaver/man/choose.thresh.nbedges.Rd
brainwaver/data
brainwaver/data/datalist
brainwaver/data/brain.txt.gz
brainwaver/data/young.txt.gz
brainwaver/data/young.rda
brainwaver/data/brain.rda