data.dti {LPRelevance}

DTI data.

Description

A diffusion tensor imaging study comparing brain activity of six dyslexic children versus six normal controls. Two-sample tests produced z-values at N = 15443 voxels (3-dimensional brain locations), with each z_i \sim N(0,1) under the null hypothesis of no difference between the dyslexic and normal children.

Usage

data(data.dti)

Format

A data frame with 15443 observations on the following 4 variables.

coordx

A list of x coordinates

coordy

A list of y coordinates

coordz

A list of z coordinates

z

The z-values.

Source

http://statweb.stanford.edu/~ckirby/brad/LSI/datasets-and-programs/datasets.html

References

Efron, B. (2012). "Large-scale inference: empirical Bayes methods for estimation, testing, and prediction". Cambridge University Press.