# Built on gplots::heatmap.2
#' A modified version of heatmap.2 from the gplots package for cluster plotting
#'
#' @param x numeric matrix of the values to be plotted.
#' @param Rowv determines if and how the \emph{row} dendrogram should be
#' reordered. By default, it is TRUE, which implies dendrogram is
#' computed and reordered based on row means. If NULL or FALSE, then no
#' dendrogram is computed and no reordering is done. If a
#' \code{\link{dendrogram}}, then it is used "as-is", ie
#' without any reordering. If a vector of integers, then dendrogram is
#' computed and reordered based on the order of the vector.
#' @param Colv determines if and how the \emph{column} dendrogram should
#' be reordered. Has the options as the \code{Rowv} argument above and
#' \emph{additionally} when \code{x} is a square matrix,
#' \code{Colv="Rowv"} means that columns should be treated identically
#' to the rows.
#' @param distfun function used to compute the distance (dissimilarity)
#' between both rows and columns. Defaults to \code{\link{dist}}.
#' @param hclustfun function used to compute the hierarchical clustering
#' when \code{Rowv} or \code{Colv} are not dendrograms. Defaults to
#' \code{\link{hclust}}.
#' @param dendrogram character string indicating whether to draw 'none',
#' 'row', 'column' or 'both' dendrograms. Defaults to 'both'. However,
#' if Rowv (or Colv) is FALSE or NULL and dendrogram is 'both', then a
#' warning is issued and Rowv (or Colv) arguments are honoured.
#' @param reorderfun \code{function(d, w)} of dendrogram and weights for
#' reordering the row and column dendrograms. The default uses
#' \code{\link{stats reorder.dendrogram}}.
#' @param symm logical indicating if \code{x} should be treated
#' \bold{symm}etrically; can only be true when \code{x} is a
#' square matrix.
#' @param scale character indicating if the values should be centered and
#' scaled in either the row direction or the column direction, or
#' none. The default is \code{"none"}.
#' @param na.rm logical indicating whether \code{NA}'s should be removed.
#' @param revC logical indicating if the column order should be
#' \code{\link{rev}}ersed for plotting, such that e.g., for the
#' symmetric case, the symmetry axis is as usual.
#' @param add.expr expression that will be evaluated after the call to
#' \code{image}. Can be used to add components to the plot.
#' @param breaks (optional) Either a numeric vector indicating the
#' splitting points for binning \code{x} into colors, or a integer
#' number of break points to be used, in which case the break points
#' will be spaced equally between \code{min(x)} and \code{max(x)}.
#' @param symbreaks Boolean indicating whether breaks should be
#' made symmetric about 0. Defaults to \code{TRUE} if the data includes
#' negative values, and to \code{FALSE} otherwise.
#' @param col colors used for the image. Defaults to heat colors
#' (\code{heat.colors}).
#' @param colsep,rowsep,sepcolor (optional) vector of integers
#' indicating which columns or rows should be separated from the
#' preceding columns or rows by a narrow space of color
#' \code{sepcolor}.
#' @param sepwidth (optional) Vector of length 2 giving the width
#' (colsep) or height (rowsep) the separator box drawn by colsep and
#' rowsep as a function of the width (colsep) or height (rowsep) of a
#' cell. Defaults to \code{c(0.05, 0.05)}
#' @param cellnote (optional) matrix of character strings which will be
#' placed within each color cell, e.g. p-value symbols.
#' @param notecex (optional) numeric scaling factor for \code{cellnote}
#' items.
#' @param notecol (optional) character string specifying the color for
#' \code{cellnote} text. Defaults to "cyan".
#' @param na.color Color to use for missing value (\code{NA}). Defaults
#' to the plot background color.
#' @param trace character string indicating whether a solid "trace" line
#' should be drawn across 'row's or down 'column's, 'both' or 'none'.
#' The distance of the line from the center of each color-cell is
#' proportional to the size of the measurement. Defaults to 'column'.
#' @param tracecol character string giving the color for "trace"
#' line. Defaults to "cyan".
#' @param hline,vline,linecol Vector of values within cells where a
#' horizontal or vertical dotted line should be drawn. The color of
#' the line is controlled by \code{linecol}. Horizontal lines are only
#' plotted if \code{trace} is 'row' or 'both'. Vertical lines are only
#' drawn if \code{trace} 'column' or 'both'. \code{hline} and
#' \code{vline} default to the median of the breaks, \code{linecol}
#' defaults to the value of \code{tracecol}.
#' @param margins numeric vector of length 2 containing the margins
#' (see \code{\link{par}(mar= *)}) for column and row names,
#' respectively.
#' @param ColSideColors (optional) character vector of length
#' \code{ncol(x)} containing the color names for a horizontal side bar
#' that may be used to annotate the columns of \code{x}.
#' @param RowSideColors (optional) character vector of length
#' \code{nrow(x)} containing the color names for a vertical side bar
#' that may be used to annotate the rows of \code{x}.
#' @param cexRow,cexCol positive numbers, used as \code{cex.axis} in
#' for the row or column axis labeling. The defaults currently only
#' use number of rows or columns, respectively.
#' @param labRow,labCol character vectors with row and column labels to
#' use; these default to \code{rownames(x)} or \code{colnames(x)},
#' respectively.
#' @param srtRow,srtCol angle of row/column labels, in degrees from
#' horizontal
#' @param adjRow,adjCol 2-element vector giving the (left-right,
#' top-bottom) justification of row/column labels (relative to the text
#' orientation).
#' @param offsetRow,offsetCol Number of character-width spaces to
#' place between row/column labels and the edge of the plotting
#' region.
#' @param colRow,colCol color of row/column labels, either a scalar to
#' set the color of all labels the same, or a vector providing the
#' colors of each label item
#' @param keysize numeric value indicating the size of the key
#' @param density.info character string indicating whether to superimpose
#' a 'histogram', a 'density' plot, or no plot ('none') on the
#' color-key.
#' @param denscol character string giving the color for the density
#' display specified by \code{density.info}, defaults to the same value
#' as \code{tracecol}.
#' @param symkey Boolean indicating whether the color key should be
#' made symmetric about 0. Defaults to \code{TRUE} if the data includes
#' negative values, and to \code{FALSE} otherwise.
#' @param densadj Numeric scaling value for tuning the kernel width when
#' a density plot is drawn on the color key. (See the \code{adjust}
#' parameter for the \code{density} function for details.) Defaults to
#' 0.25.
#' @param key.title main title of the color key. If set to NA no title
#' will be plotted.
#' @param key.xlab x axis label of the color key. If set to NA no label
#' will be plotted.
#' @param key.ylab y axis label of the color key. If set to NA no label
#' will be plotted.
#' @param key.xtickfun function computing tick location and labels for
#' the xaxis of the color key. Returns a named list containing
#' parameters that can be passed to \code{axis}. See examples.
#' @param key.ytickfun function computing tick location and labels for
#' the y axis of the color key. Returns a named list containing
#' parameters that can be passed to \code{axis}. See examples.
#' @param key.par graphical parameters for the color key. Named list that
#' can be passed to \code{par}.
#' @param main,xlab,ylab main, x- and y-axis titles; defaults to none.
#' @param lmat,lhei,lwid visual layout: position matrix, column height,
#' column width. See \code{\link{gplots::heatmap.2}} for details
#' @param extrafun A function to be called after all other work. See
#' code{\link{gplots::heatmap.2}}.
#' @param ... additional arguments passed on to \code{\link{image}}
#'
#'
#' @return a base R plot
#' @export
#'
heatmap.3 <- function (x,
Rowv = TRUE,
Colv = if (symm) "Rowv" else TRUE,
distfun = dist,
hclustfun = hclust,
dendrogram = c("both", "row", "column", "none"),
symm = FALSE,
scale = c("none", "row", "column"),
na.rm = TRUE,
revC = identical(Colv, "Rowv"),
add.expr,
breaks,
symbreaks = min(x < 0, na.rm = TRUE) || scale != "none",
col = "heat.colors",
colsep,
rowsep,
sepcolor = "white",
sepwidth = c(0.05, 0.05),
cellnote,
notecex = 1,
notecol = "cyan",
na.color = par("bg"),
trace = c("column", "row", "both", "none"),
tracecol = "cyan",
hline = median(breaks),
vline = median(breaks),
linecol = tracecol,
margins = c(5, 5),
ColSideColors,
RowSideColors,
cexRow = 0.2 + 1/log10(nr),
cexCol = 0.2 + 1/log10(nc),
labRow = NULL,
labCol = NULL,
key = TRUE,
keysize = 1.5,
density.info = c("histogram", "density", "none"),
denscol = tracecol,
symkey = min(x < 0, na.rm = TRUE) || symbreaks,
densadj = 0.25,
main = NULL,
xlab = NULL,
ylab = NULL,
lmat = NULL,
lhei = NULL,
lwid = NULL,
...) {
scale01 <- function(x,
low = min(x),
high = max(x)) {
x <- (x - low)/(high - low)
x
}
# List for returned values
retval <- list()
# Argument matching
scale <- if(symm && missing(scale)) {
"none"
} else {
match.arg(scale)
}
dendrogram <- if(missing(dendrogram)) {
"both"
} else {
match.arg(dendrogram)
}
trace <- if(missing(trace)) {
"both"
} else {
match.arg(trace)
}
density.info <- if(missing(density.info)) {
"none"
} else {
match.arg(density.info)
}
# convert col to a function call
if (length(col) == 1 && is.character(col)) {
col <- get(col, mode = "function")
}
if (!missing(breaks) && (scale != "none")) {
warning("Using scale=\"row\" or scale=\"column\" when breaks are",
"specified can produce unpredictable results.",
"Please consider using only one or the other.")
}
if (is.null(Rowv) || is.na(Rowv)) {
Rowv <- FALSE
}
if (is.null(Colv) || is.na(Colv)) {
Colv <- FALSE
} else if (Colv == "Rowv" && !isTRUE(Rowv)) {
Colv <- FALSE
}
if (length(di <- dim(x)) != 2 || !is.numeric(x)) {
stop("`x' must be a numeric matrix")
}
# Get number of rows and columns from dims
nr <- di[1]
nc <- di[2]
if (nr <= 1 || nc <= 1) {
stop("`x' must have at least 2 rows and 2 columns")
}
if (!is.numeric(margins) || length(margins) != 2) {
stop("`margins' must be a numeric vector of length 2")
}
# generate a blank cellnote matrix if not provided
# not sure why you'd do this - why not just skip drawing the cellnote?
if (missing(cellnote)) {
cellnote <- matrix("", ncol = ncol(x), nrow = nrow(x))
}
if (!inherits(Rowv, "dendrogram")) {
if (((!isTRUE(Rowv)) || (is.null(Rowv))) && (dendrogram %in% c("both", "row"))) {
dendrogram <- ifelse(is.logical(Colv) && (Colv),
"column",
"none")
warning("Discrepancy: Rowv is FALSE, while dendrogram is `",
dendrogram, "'. Omitting row dendogram.")
}
}
if (!inherits(Colv, "dendrogram")) {
if (((!isTRUE(Colv)) || (is.null(Colv))) && (dendrogram %in% c("both", "column"))) {
dendrogram <- ifelse(is.logical(Rowv) && (Rowv),
"row",
"none")
warning("Discrepancy: Colv is FALSE, while dendrogram is `",
dendrogram, "'. Omitting column dendogram.")
}
}
# hierarchical clustering and dendrogram generation for rows
if (inherits(Rowv, "dendrogram")) {
# user-supplied row dendrogram
ddr <- Rowv
rowInd <- order.dendrogram(ddr)
} else if (is.integer(Rowv)) {
# computation for row dendrogram with provided order
hcr <- hclustfun(distfun(x))
ddr <- as.dendrogram(hcr)
ddr <- reorder(ddr, Rowv)
rowInd <- order.dendrogram(ddr)
if (nr != length(rowInd)) {
stop("row dendrogram ordering gave index of wrong length")
}
} else if (isTRUE(Rowv)) {
# computation for row dendrogram using row means for order
Rowv <- rowMeans(x, na.rm = na.rm)
hcr <- hclustfun(distfun(x))
ddr <- as.dendrogram(hcr)
ddr <- reorder(ddr, Rowv)
rowInd <- order.dendrogram(ddr)
if (nr != length(rowInd)) {
stop("row dendrogram ordering gave index of wrong length")
}
} else {
# use row indices if no dendrogram is required.
# nr:1 because low values are at the bottom.
rowInd <- nr:1
}
# hierarchical clustering and dendrogram generation for columns
if (inherits(Colv, "dendrogram")) {
# user-supplied col dendrogram
ddc <- Colv
colInd <- order.dendrogram(ddc)
} else if (identical(Colv, "Rowv")) {
# use the row dendrogram and order if rows and cols are mattched
# e.g. for a symmetrical matrix
if (nr != nc) {
stop("Colv = \"Rowv\" but nrow(x) != ncol(x)")
}
if (exists("ddr")) {
ddc <- ddr
colInd <- order.dendrogram(ddc)
} else {
colInd <- rowInd
}
} else if (is.integer(Colv)) {
# computation for col dendrogram with provided order
hcc <- hclustfun(distfun(if(symm) x else t(x)))
ddc <- as.dendrogram(hcc)
ddc <- reorder(ddc, Colv)
colInd <- order.dendrogram(ddc)
if (nc != length(colInd)) {
stop("column dendrogram ordering gave index of wrong length")
}
} else if (isTRUE(Colv)) {
# computation for row dendrogram using col means for order
Colv <- colMeans(x, na.rm = na.rm)
hcc <- hclustfun(distfun(if(symm) x else t(x)))
ddc <- as.dendrogram(hcc)
ddc <- reorder(ddc, Colv)
colInd <- order.dendrogram(ddc)
if (nc != length(colInd)) {
stop("column dendrogram ordering gave index of wrong length")
}
} else {
# use row indices if no dendrogram is required.
colInd <- 1:nc
}
# if hierarchical clustering was perfromed,
# add the results to the return values
if (exists("hcc")) {
retval$hcc <- hcc
}
if (exists("hcr")) {
retval$hcr <- hcr
}
# adding row and column indices to the return values
retval$rowInd <- rowInd
retval$colInd <- colInd
retval$call <- match.call()
# Re-sort the matrix based on row and column indices
x <- x[rowInd, colInd]
x.unscaled <- x
# Re-sort the cell labels based on row and column indices
cellnote <- cellnote[rowInd, colInd]
# Generate row label vector
if (is.null(labRow)) {
if(is.null(rownames(x))) {
labRow <- (1:nr)[rowInd]
} else {
labRow <- rownames(x)
}
} else {
labRow <- labRow[rowInd]
}
# Generate col label vector
if (is.null(labCol)) {
if(is.null(colnames(x))) {
labCol <- (1:nc)[colInd]
} else {
labCol <- colnames(x)
}
} else {
labCol <- labCol[colInd]
}
# rescaling
if (scale == "row") {
retval$rowMeans <- rm <- rowMeans(x, na.rm = na.rm)
x <- sweep(x, 1, rm)
retval$rowSDs <- sx <- apply(x, 1, sd, na.rm = na.rm)
x <- sweep(x, 1, sx, "/")
} else if (scale == "column") {
retval$colMeans <- rm <- colMeans(x, na.rm = na.rm)
x <- sweep(x, 2, rm)
retval$colSDs <- sx <- apply(x, 2, sd, na.rm = na.rm)
x <- sweep(x, 2, sx, "/")
}
# generate value breaks for color palette
if (missing(breaks) || is.null(breaks) || length(breaks) < 1) {
breaks <- ifelse(missing(col) || is.function(col),
16,
length(col) + 1)
}
if (length(breaks) == 1) {
if (!symbreaks) {
breaks <- seq(min(x, na.rm = na.rm),
max(x, na.rm = na.rm),
length = breaks)
} else {
extreme <- max(abs(x), na.rm = TRUE)
breaks <- seq(-extreme, extreme, length = breaks)
}
}
# generate heatmap colors based on the number of breaks
nbr <- length(breaks)
ncol <- length(breaks) - 1
if (class(col) == "function") {
col <- col(ncol)
}
min.breaks <- min(breaks)
max.breaks <- max(breaks)
x[x < min.breaks] <- min.breaks
x[x > max.breaks] <- max.breaks
if (missing(lhei) || is.null(lhei)) {
lhei <- c(keysize, 4)
}
if (missing(lwid) || is.null(lwid)) {
lwid <- c(keysize, 4)
}
if (missing(lmat) || is.null(lmat)) {
lmat <- rbind(4:3, 2:1)
if (!missing(ColSideColors)) {
if (!is.character(ColSideColors)) { #|| ncol(ColSideColors) != nc)
stop("'ColSideColors' must be a character ") #vector of length ncol(x)")
}
lmat <- rbind(lmat[1, ] + 1, c(NA, 1), lmat[2, ] + 1)
nnn <- ifelse(is.vector(ColSideColors),
1,
nrow(colSideColors))
lhei <- c(lhei[1], nnn * 0.1, lhei[2])
}
if (!missing(RowSideColors)) {
if (!is.character(RowSideColors)) { #|| length(RowSideColors) != nr)
stop("'RowSideColors' must be a character ")
}
nnn <- ifelse(is.vector(RowSideColors),
1,
ncol(RowSideColors))
lmat <- cbind(lmat[, 1] + 1,
c(rep(NA, nrow(lmat) - 1), 1),
lmat[, 2] + 1)
lwid <- c(lwid[1], nnn*0.1, lwid[2])
}
lmat[is.na(lmat)] <- 0
}
if (length(lhei) != nrow(lmat)) {
stop("lhei must have length = nrow(lmat) = ", nrow(lmat))
}
if (length(lwid) != ncol(lmat)) {
stop("lwid must have length = ncol(lmat) =", ncol(lmat))
}
op <- par(no.readonly = TRUE)
on.exit(par(op))
layout(lmat,
widths = lwid,
heights = lhei,
respect = FALSE)
if (!missing(RowSideColors)) {
par(mar = c(margins[1], 0, 0, 0.5))
if (is.vector(RowSideColors)) {
image(rbind(1:nr),
col = RowSideColors[rowInd],
axes = FALSE)
}
if (is.matrix(RowSideColors)) {
jk.row <- RowSideColors
jk.xy <- matrix(which(jk.row != "0"), dim(jk.row))
colnames(jk.xy) <- colnames(jk.row)
# image(t(jk.xy), col = jk.row[rowInd, ], xaxt="n", yaxt="n")
# grid(nx=ncol(jk.row), ny=nrow(jk.row), lty=1, col="black")
image(x = t(jk.xy),
col = jk.row[rowInd, ],
xaxt = "n",
yaxt = "n")
# axis(3, at=seq(0,1,1/(ncol(jk.xy)-1)),labels=colnames(jk.xy), las=2, cex.axis = cexCol, tick=0)
axis(side = 1,
at = seq(0, 1, 1 / (ncol(jk.xy) - 1)),
labels = colnames(jk.xy),
las = 2,
cex.axis = cexCol,
tick = 0)
# grid(nx=ncol(jk.row), ny=nrow(jk.row), lty=1, col="black")
}
}
if (!missing(ColSideColors)) {
par(mar = c(0.5, 0, 0, margins[2]))
if (is.vector(ColSideColors)) {
image(x = cbind(1:nc),
col = ColSideColors[colInd],
axes = FALSE)
}
if (is.matrix(ColSideColors)) {
jk.col <- ColSideColors
jk.xy <- matrix(which(jk.col != "0"), dim(jk.col))
image(x = t(jk.xy),
col = jk.col[, colInd],
axes = FALSE)
}
}
par(mar = c(margins[1], 0, 0, margins[2]))
if (!symm || scale != "none") {
x <- t(x)
cellnote <- t(cellnote)
}
if (revC) {
iy <- nr:1
if (exists("ddr")) {
ddr <- rev(ddr)
}
x <- x[, iy]
cellnote <- cellnote[, iy]
} else {
iy <- 1:nr
}
image(x = 1:nc,
y = 1:nr,
z = x,
xlim = 0.5 + c(0, nc),
ylim = 0.5 + c(0, nr),
axes = FALSE,
xlab = "",
ylab = "",
col = col,
breaks = breaks,
...)
retval$carpet <- x
if (exists("ddr")) {
retval$rowDendrogram <- ddr
}
if (exists("ddc")) {
retval$colDendrogram <- ddc
}
retval$breaks <- breaks
retval$col <- col
# if (!invalid(na.color) & any(is.na(x))) {
# mmat <- ifelse(is.na(x), 1, NA)
# image(1:nc, 1:nr, mmat, axes = FALSE, xlab = "", ylab = "",
# col = na.color, add = TRUE)
# }
axis(side = 1,
at = 1:nc,
labels = labCol,
las = 2,
line = -0.5,
tick = 0,
cex.axis = cexCol)
if (!is.null(xlab))
mtext(text = xlab,
side = 1,
line = margins[1] - 1.25)
# axis(3, 1:nc, labels = labCol, las = 2, line = -0.5, tick = 0,
# cex.axis = cexCol)
if (!is.null(xlab)) {
mtext(text = xlab,
side = 3,
line = margins[1] - 1.25)
}
axis(side = 4,
at = iy,
labels = labRow,
las = 2,
line = -0.5,
tick = 0,
cex.axis = cexRow)
if (!is.null(ylab)) {
mtext(text = ylab,
side = 4,
line = margins[2] - 1.25)
}
if (!missing(add.expr)) {
eval(substitute(add.expr))
}
if (!missing(colsep)) {
for (csep in colsep) {
rect(xleft = csep + 0.5,
ybottom = rep(0, length(csep)),
xright = csep + 0.5 + sepwidth[1],
ytop = rep(ncol(x) + 1, csep),
lty = 1,
lwd = 1,
col = sepcolor,
border = sepcolor)
}
}
if (!missing(rowsep)) {
for (rsep in rowsep) {
rect(xleft = 0,
ybottom = (ncol(x) + 1 - rsep) - 0.5,
xright = nrow(x) + 1,
ytop = (ncol(x) + 1 - rsep) - 0.5 - sepwidth[2],
lty = 1,
lwd = 1,
col = sepcolor,
border = sepcolor)
}
}
min.scale <- min(breaks)
max.scale <- max(breaks)
x.scaled <- scale01(t(x), min.scale, max.scale)
if (trace %in% c("both", "column")) {
retval$vline <- vline
vline.vals <- scale01(vline, min.scale, max.scale)
for (i in colInd) {
if (!is.null(vline)) {
abline(v = i - 0.5 + vline.vals,
col = linecol,
lty = 2)
}
xv <- rep(i, nrow(x.scaled)) + x.scaled[, i] - 0.5
xv <- c(xv[1], xv)
yv <- 1:length(xv) - 0.5
lines(x = xv,
y = yv,
lwd = 1,
col = tracecol,
type = "s")
}
}
if (trace %in% c("both", "row")) {
retval$hline <- hline
hline.vals <- scale01(hline, min.scale, max.scale)
for (i in rowInd) {
if (!is.null(hline)) {
abline(h = i + hline,
col = linecol,
lty = 2)
}
yv <- rep(i, ncol(x.scaled)) + x.scaled[i, ] - 0.5
yv <- rev(c(yv[1], yv))
xv <- length(yv):1 - 0.5
lines(x = xv, y = yv, lwd = 1, col = tracecol, type = "s")
}
}
if (!missing(cellnote)) {
text(x = c(row(cellnote)),
y = c(col(cellnote)),
labels = c(cellnote),
col = notecol,
cex = notecex)
}
par(mar = c(margins[1], 0, 0, 0))
if (dendrogram %in% c("both", "row")) {
plot(x = ddr,
horiz = TRUE,
axes = FALSE,
yaxs = "i",
leaflab = "none")
} else {
plot.new()
}
par(mar = c(0, 0, if (!is.null(main)) 5 else 0, margins[2]))
if (dendrogram %in% c("both", "column")) {
plot(x = ddc,
axes = FALSE,
xaxs = "i",
leaflab = "none")
} else {
plot.new()
}
if (!is.null(main)) {
title(main = main,
cex.main = 1.5 * op[["cex.main"]])
}
if (key) {
par(mar = c(5, 4, 2, 1), cex = 0.75)
tmpbreaks <- breaks
if (symkey) {
max.raw <- max(abs(c(x, breaks)), na.rm = TRUE)
min.raw <- -max.raw
tmpbreaks[1] <- -max(abs(x))
tmpbreaks[length(tmpbreaks)] <- max(abs(x))
} else {
min.raw <- min(x, na.rm = TRUE)
max.raw <- max(x, na.rm = TRUE)
}
z <- seq(min.raw, max.raw, length = length(col))
image(z = matrix(z, ncol = 1),
col = col,
breaks = tmpbreaks,
xaxt = "n",
yaxt = "n")
par(usr = c(0, 1, 0, 1))
lv <- pretty(breaks)
xv <- scale01(as.numeric(lv), min.raw, max.raw)
axis(1, at = xv, labels = lv)
if (scale == "row") {
mtext(side = 1,
"Row Z-Score",
line = 2)
} else if (scale == "column") {
mtext(side = 1,
"Column Z-Score",
line = 2)
} else {
#mtext(side = 1, "Value", line = 2)
mtext(side = 1,
"",
line = 2)
}
if (density.info == "density") {
dens <- density(x,
adjust = densadj,
na.rm = TRUE)
omit <- dens$x < min(breaks) | dens$x > max(breaks)
dens$x <- dens$x[-omit]
dens$y <- dens$y[-omit]
dens$x <- scale01(dens$x, min.raw, max.raw)
lines(x = dens$x,
y = dens$y/max(dens$y) * 0.95,
col = denscol,
lwd = 1)
axis(side = 2,
at = pretty(dens$y) / max(dens$y) * 0.95,
labels = pretty(dens$y))
title("")
#title("Color Key and Density Plot", cex=0.25)
par(cex = 0.25)
mtext(side = 2,
"",
line = 2)
#mtext(side = 2, "Density", line = 2)
} else if (density.info == "histogram") {
h <- hist(x,
plot = FALSE,
breaks = breaks)
hx <- scale01(breaks, min.raw, max.raw)
hy <- c(h$counts, h$counts[length(h$counts)])
lines(x = hx,
y = hy/max(hy) * 0.95,
lwd = 1,
type = "s",
col = denscol)
axis(side = 2,
at = pretty(hy)/max(hy) * 0.95,
labels = pretty(hy))
#title("Color Key and Histogram", cex=0.25)
title("",
cex = 0.25)
par(cex = 0.25)
mtext(side = 2,
"",
line = 2)
#mtext(side = 2, "Count", line = 2)
} else {
title("",
cex = 0.25)
#title("Color Key", cex=0.25)
}
} else {
plot.new()
}
retval$colorTable <- data.frame(low = retval$breaks[-length(retval$breaks)],
high = retval$breaks[-1], color = retval$col)
invisible(retval)
}
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