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 <email@example.com>|
|Date of publication||2012-12-02 07:08:10|
|Maintainer||Sophie Achard <firstname.lastname@example.org>|
|License||GPL (>= 2)|
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