Calculate Dens value from Precision Matrix

This function evaluates the density level of a precision matrix based on the Dens criterion function in equation (5) of Wang et al. (2016).

prec2dens(precision)

Arguments

precision	Input precision matrix (symmetric and positive definite).

Value

Density level from Precision matrix.

References

Wang, Y., Kang, J., Kemmer P. and Guo, Y. (2016). An efficient and reliable statistical method for estimating functional connectivity in large scale brain networks using partial correlation. Front. Neurosci. 10:123. doi: 10.3389/fnins.2016.00123

Author

Yikai Wang, Jian Kang, Phebe Brenne Kemmer and Ying Guo
Maintainer: Yikai Wang yikai.wang@emory.edu