iModel-class: Class iModel

In Tokazama/iClass: More intuitive syntax for manipulating imaging data

Description

Object containing a fitted statistical model for image data.

Slots

iData

iData reference class object for fitted model.

Y

Pointer to image matrix stored as h5 dataset.

X

Information about the design:

• X Design matrix.

• K Filter information specific to each image.

• W weights

• KWX Weighted design matrix information.

• pKX Pseudoinverse of X.

• V Non-sphericity matrix.

• betaCov Covariance of correlation coefficients.

• trRV Trace of RV.

• trRVRV Trace of RVRV.

• rdf Residual degrees of freedom.

beta

Pointer to beta matrix stored as h5 dataset.

res

Pointer to residual matrix stored as h5 dataset.

mrss

Pointer to mean residual sum of squares matrix stored as h5 dataset.

xVi

Information about intrinsic temporal non-sphericity:

• Vi List of non-sphericity components.

• V Non-sphericity matrix (Cov(e) = sigma^2*V)

• h Hyperparameters.

• Cy Covariance of response matrix.

dims

Model dimensions:

• npred Number of predictors.

• nimg Number of images.

• nvox Number of voxels.

• fwhm full-width at half-maxima

• resels Resolution elements.

• rpvImage Resels per voxel image.

C

list of contrasts:

• name Name of the contrast.

• c Contrast weights.

• X1 Reamaining design space (orthogonal to X0)

• X0 Reduced design matrix.

• iX0 Indicates how contrat was specified.

• dims Dimensions for contrast

  • trRV Trace of RV.

  • trRVRV Trace of RVRV.

  • idf Degrees of interest.

• fieldType Type of statyistical field being fitted.

• contrastImage Object of class antsImage representing contrast.

• clusterImage Object of class antsImage representing the thresholded contrastImage.

• results Either a list or data.frame containing the results of a given contrast.

• sthresh Statistical threshold.

• cthresh Cluster threshold.

control

Control values for fitting the model (see iControl).

Author(s)

Zachary P. Christensen

See Also

ilm, iglm

Tokazama/iClass documentation built on May 9, 2019, 4:51 p.m.