qp.matrix.image {qp} | R Documentation |
Makes an image plot of the absolute value of an inverse correlation matrix and reports the number of edges of the corresponding independence graph, the total number of adjacencies of the graph and the percentage of edges respect to this total number of adjacencies
qp.matrix.image(M, col=NULL, plot=TRUE)
M |
the matrix to make the image plot |
col |
flag that when set to NULL the gray scale is used in the plot |
plot |
when this flag is set to TRUE it plots the function |
Returns an object of the class matrix containing the the number of edges of the corresponding independence graph, the total number of adjacencies of the graph and the percentage of edges respect to this total number of adjacencies.
When plot=TRUE
it plots the partial correlation coefficients as a
matrix.
Robert Castelo and Alberto Roverato
Castelo, R. and Roverato, A. (2006). A robust procedure for Gaussian graphical model search from microarray data with p larger than n, J. Mach. Learn. Res., 7:2621-2650
data(jmlr06data) qp.matrix.image(IC.bd5)