MixfMRI v0.1-0

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Mixture fMRI Clustering Analysis

Utilizing model-based clustering (unsupervised) for functional magnetic resonance imaging (fMRI) data. The developed methods (Chen and Maitra (2018, manuscript)) include 2D and 3D clustering analyses (for p-values with voxel locations) and segmentation analyses (for p-values alone) for fMRI data where p-values indicate significant level of activation responding to stimulate of interesting. The analyses are mainly identifying active voxel/signal associated with normal brain behaviors. Analysis pipelines (R scripts) utilizing this package (see examples in 'inst/workflow/') is also implemented with high performance techniques.

Functions in MixfMRI

Name Description
LRT Likelihood ratio tests
Simulations Generate datasets for MixfMRI simulations
Print Objects Print fclust related outputs
algorithm Main algorithms implemented in fclust
Plotting Main plotting function
Main functions Main MixfMRI function
MixfMRI Control Sets of controls in MixfMRI
Example Datasets Example datasets in MixfMRI
MixfMRI-package fMRI Clustering Analysis
initial Main initialization functions
Likelihood Mixture Tests with Identity Cov Matrix or Only p-values Likelihood Mixture Tests with Identity Cov Matrix or Only p-values
Density function of p-values Density function of p-values
False Discovery Rates for Spatial Signals False Discovery Rates for Spatial Signals using Benjamini and Heller (2007)
Generalized Cluster-Based Analysis (CBA) Method Generalized Cluster-Based Analysis (CBA) Method
Covariance Matrices Covariance Matrices
Compute Q values Q-values using Benjamini and Hochberg (1995)
Summarized Overlap Summarized Overlap
Covariance Matrices of Logit ETA Covariance Matrices of Logit ETA
Compute Statistics for Log Odds Ratio of Posterior Probability Compute Statistics for Log Odds Ratio of Posterior Probability
General Internal Functions All General Internal Functions and Datasets
Smoothing Generate datasets with smoothing for MixfMRI simulations
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Vignettes of MixfMRI

Name
MixfMRI-include/'
MixfMRI-include/00-preamble.tex
MixfMRI-include/01-copyright.tex
MixfMRI-include/01-introduction.tex
MixfMRI-include/02-examples.tex
MixfMRI-include/MixfMRI.bib
MixfMRI-include/maitra_2d.pdf
MixfMRI-include/maitra_2d_fclust.pdf
MixfMRI-include/maitra_phantom.pdf
MixfMRI-include/my_jss.cls
MixfMRI-guide.Rnw
build_pdf.sh
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Details

Date 2018-04-25
LazyLoad yes
LazyData yes
License Mozilla Public License 2.0
BugReports https://github.com/snoweye/MixfMRI/issues
URL https://github.com/snoweye/MixfMRI
NeedsCompilation yes
Packaged 2018-04-26 00:32:11 UTC; snoweye
Repository CRAN
Date/Publication 2018-04-26 11:38:14 UTC

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