mni.vertex.power.analysis: Compute the statistical power at every vertex

Description Usage Arguments See Also

View source: R/vertex_glim.R

Description

Given a standard deviation at every vertex this function computes the statistical power both in the form of the n required to recapture a change of delta, or the delta required to recapture a change of n. Basically a wrapper to power.t.test.

Usage

1
mni.vertex.power.analysis(std.file, n=25, alpha=0.005, power=0.995, delta=0.5)

Arguments

std.file

A text file with one line per vertex containing the standard deviations at each vertex.

n

The number of subjects to compute the power for.

alpha

The threshold at which to compute the power.

power

The power to use in the computation.

delta

The change required in the power computation.

See Also

power.t.test. mni.read.glim.file. mni.build.data.table. mni.vertex.statistics. mni.write.vertex.stats.


BIC-MNI/mni.cortical.statistics documentation built on May 5, 2019, 10:25 a.m.