Pairwise visualization of two dimensional data in a three dimensional fashion facilitating a color encoded Kernel Density Estimation.
heatpairs(mat, main = "heatpairs", xlim = NULL, ylim = NULL,
labels = NULL, add.points = FALSE, group = NULL,
color.group = "magenta", method = "spearman", colpal = "heat",
simulate = FALSE, daltonize = FALSE, cvd = "p", alpha = NULL,
rev = FALSE, pch = 19, cexplot = 0.5, cor.cex = 2.5, nrcol = 30,
grid = 100, only = "none", add.contour = FALSE, nlevels = 10,
color.contour = "black", greyscale = FALSE, log = "", ...)a matrix with numerical entries.
title(s) of the plot, standard graphics parameter.
x limits, standard graphics parameter.
y limits, standard graphics parameter.
a character vector giving the labels to be shown on the diagonal.
logical: if TRUE (FALSE by default), a certain 'group' of points can be colored in all pairwise plots.
indices or rownames of 'mat' to be highlighted in all pairwise plots (not necessarily all).
R build-in color in which the 'group' of points should be highlighted.
a character specifying the correlation method to use ('pearson' (default), 'kendall' or 'spearman').
a character vector containing R built-in color names or a name of a LSD colorpalette as a character string (see disco() or disco) (defaults to "heat", if not specified).
logical: if TRUE (FALSE by default), a converted colorpalette is used to simulate dichromat vision according to http://www.daltonize.org (see daltonize).
logical: if TRUE (FALSE by default), a converted colorpalette is used to enhance dichromat vision according to http://www.daltonize.org (see daltonize).
character string implying the type of color vision deficiency ("p" for protanope, "d" for deuteranope or "t" for tritanope).
alpha value: a two-digit integer between 01 and 99 for color opacity, i.e. appearance of partial or full transparency (usage omitted by default).
logical: if TRUE (FALSE by default), a reversed colorpalette is used.
plotting 'character'. This can either be a single character or an integer code for one of a set of graphics symbols. (see '?pch', to be passed to plot).
a numerical value giving the amount by which the points should be magnified relative to the default.
a numerical value giving the amount by which the correlation characters should be magnified relative to the default.
a non-negative integer specifying the number of colors to be used (defaults to 100, if not specified).
an integer specifying the size of the grid used for the KDE.
a character string which contains 'x' if the density should only be computed for the x axis, 'y' for the y axis (defaults to 'none' for the two-dimensional case).
logical: if TRUE (FALSE by default), the contour lines are added to the plot.
an integer giving the number of levels of the contour lines.
R build-in color for the contour lines.
logical: if TRUE (FALSE by default), the used colorpalette is converted to greyscales.
a character string which contains "x" if the x axis is to be logarithmic, "y" if the y axis is to be logarithmic and "xy" or "yx" if both axes are to be logarithmic.
additional parameters to be passed to points and plot
# NOT RUN {
points = 10^4
x = rnorm(points/2)
x = c(x,x+2.5)
y = x + rnorm(points,sd=0.75)
x = sign(x)*abs(x)^1.3
mat = cbind(x,y,x + rnorm(points,sd=0.5))
colnames(mat) = c("x","y","z")
rownames(mat) = 1:nrow(mat)
heatpairs(mat,labels=c(expression(Xi),expression(Lambda),expression(Delta)))
# }
Run the code above in your browser using DataLab