Usage
plotDendroAndColors(
dendro,
colors,
groupLabels = NULL,
colorText = NULL,
setLayout = TRUE,
autoColorHeight = TRUE,
colorHeight = 0.2,
dendroLabels = NULL,
addGuide = FALSE, guideAll = FALSE,
guideCount = 50, guideHang = 0.2,
cex.colorLabels = 0.8, cex.dendroLabels = 0.9,
marAll = c(1, 5, 3, 1), saveMar = TRUE,
abHeight = NULL, abCol = "red", ...)
Arguments
dendro
a hierarchical clustering dendrogram such as one produced by
hclust. colors
Coloring of objects on the dendrogram. Either a vector (one color per object) or a
matrix (can also be an array or a data frame)
with each column giving one color per object. Each column will be plotted as a horizontal row of colors
under the dendrogra
groupLabels
Labels for the colorings given in colors. The labels will be printed to the
left of the color rows in the plot. If the argument is given, it must be a vector of length
equal to the number of columns in colors. If not given,
colorText
Optional labels to identify colors in the color rows.
If given, must be of the same dimensions as colors. Each label that occurs will be displayed
once.
setLayout
logical: should the plotting device be partitioned into a standard layout?
If FALSE, the user is responsible for partitioning. The function expects two regions of the same
width, the first one immediately above the second one.
autoColorHeight
logical: should the height of the color area below the dendrogram be
automatically adjusted for the number of traits? Only effective if setLayout is TRUE.
colorHeight
Specifies the height of the color area under dendrogram as a fraction of the
height of the dendrogram area. Only effective when autoColorHeight above is FALSE.
dendroLabels
dendrogram labels. Set to FALSE to disable dendrogram labels altogether;
set to NULL to use row labels of datExpr.
addGuide
logical: should vertical "guide lines" be added to the dendrogram plot? The lines make
it easier to identify color codes with individual samples.
guideAll
logical: add a guide line for every sample? Only effective for addGuide set
TRUE.
guideCount
number of guide lines to be plotted. Only effective when addGuide is
TRUE and guideAll is FALSE.
guideHang
fraction of the dendrogram height to leave between the top end of the guide line and
the dendrogram merge height. If the guide lines overlap with dendrogram labels, increase guideHang
to leave more space for the labels.
cex.colorLabels
character expansion factor for trait labels.
cex.dendroLabels
character expansion factor for dendrogram (sample) labels.
marAll
a vector of length 4 giving the bottom, left, top and right margins of the combined
plot. There is no margin between the dendrogram and the color plot underneath.
saveMar
logical: save margins setting before starting the plot and restore on exit?
abHeight
optional specification of the height for a horizontal line in the dendrogram, see
abline. abCol
color for plotting the horizontal line.