LAST UPDATED on 12-12-2004
Please read before you download...
This Matlab function library is available free-of-charge, and
interested
users are welcome to download it and use it as is. We cannot
guarantee
the codes to be bug free, nor can we provide any formal technical
support.
However, the codes are fairly well documented, so users may modify the
codes to suit their specific computational environment or data format.
Some of these functions are MATLAB implementations of published
algorithms.
If the following M-files are used (in an original or a modified form)
for
a publication, we would appreciate very much if the corresponding
papers
were included in the references.
gifa.m ( MEW )
Yokoo, T. Multivariate
Statistical Analysis of
Functional Neuroimaging Data. (Ph.D. thesis) Mount
Sinai
School
of Medicine, New York, NY. (Advisor: Lawrence Sirovich)
ind.m
Yokoo, T., Knight, B.W. and Sirovich, L. An
optimization approach to signal extraction from noisy multivariate data,
NeuroImage 14,1309-1326 (2001).
pca.m
Sirovich, L. and Everson, R. Management
and analysis of large scientific datasets. Int'l J. of
Supercomputer
Applications, 6:50-68, 1992.
gifa.m
New version of Generalized Indicator Function Analysis.
Uses statistical significance threshold for Hotelling's T^2 test (k=2)
and Multivariate Analysis of Variance (k>2).
ind.m
Performs Generalized Indicator Function Analysis, using the output from
pca.m.
pca.m
Performs Principal Component Analysis using the snapshot method.
submean.m
A subroutine for ind.m and gifa.m.
sumsq.m
A subroutine for ind.m and gifa.m.
To learn how to use this library, read Notes on GIF Analysis using Matlab .
Misc. MATALB Functions
Gconv2.m
(2-D convolution with a circularly symmetric Gaussian kernel.)
ROI.m
(Selects a "Region Of Interest" w/i an image using 3-button mouse
inputs.)
show.m
(Displays a gray-scale image.)
eigenview.m
(Displays an spatial eigenvector [eigenimage] and the corresponding
temporal
eigenvector.)
vec2img.m
(Converts an image vector into a 2D image array.)
img2vec.m
(Converts a 2D image array into an image vector.)