plot.cor {sma} | R Documentation |
This function produces a red and green color image of a correlation matrix using an RGB color specification. Increasingly positive correlations are represented with reds of increasing intensity, and increasingly negative correlations are represented with greens of increasing intensity.
plot.cor(x, new=FALSE, nrgcols=50, labels=FALSE, labcols=1, title="", ...)
x |
a matrix of numerical values. |
new |
If new=F , X must already be a correlation
matrix. If new=T , the correlation matrix for the columns of
X is computed and displayed in the image. |
nrgcols |
the number of colors (>= 1) to be used in the red and green palette. |
labels |
vector of character strings to be placed at the
tickpoints, labels for the columns of X . |
labcols |
colors to be used for the labels of the columns of
X . labcols can have either length 1, in which case
all the labels are displayed using the same color, or the same
length as labels , in which case a color is specified for the
label of each column of X . |
title |
character string, overall title for the plot. |
... |
graphical parameters may also be supplied as arguments to
the function (see par ). For comparison purposes,
it is good to set zlim=c(-1,1) . |
Sandrine Dudoit, sandrine@stat.berkeley.edu
plot.mat
,rgcolors.func
,
cor.na
, cor
, image
,
rgb
.