Visualization of a Correlation Matrix. On top the
(absolute) value of the correlation plus the result of
the cor.test as stars. On bottom, the bivariate
scatterplots, with a fitted line
data for the x axis, can take matrix,vector, or
timeseries
histogram
TRUE/FALSE whether or not to display a
histogram
method
a character string indicating which
correlation coefficient (or covariance) is to be
computed. One of "pearson" (default), "kendall", or
"spearman", can be abbreviated.