Usage
barcode(x, outer.margins = list(bottom = unit(2, "lines"),
left = unit(2, "lines"),
top = unit(2, "lines"),
right = unit(2, "lines")),
horizontal = TRUE, xlim = NULL, nint = 0, main = "", xlab = "",
labelloc = TRUE, axisloc = TRUE, labelouter = FALSE,
newpage = TRUE, fontsize = 9, ptsize = unit(0.25, "char"),
ptpch = 1, bcspace = NULL, use.points = FALSE, buffer = 0.02,
log = FALSE)barcode.panel(x, horizontal = TRUE, xlim = NULL, labelloc = TRUE, axisloc = TRUE,
labelouter = FALSE, nint = 0, fontsize = 9,
ptsize = unit(0.25, "char"), ptpch = 1, bcspace = NULL,
xlab = "", xlaboffset = unit(2.5, "lines"),
use.points = FALSE, buffer = 0.02, log = FALSE)
Arguments
x
a vector of values for which the barcode is desired, or a list of such vectors for ``side-by-side" barcodes. Matrices are coerced to data frames and treated as lists NA's are allowed in the data.
outer.margins
a list of length 4 with units as components named bottom, left, top, and right, giving the outer margins. Defaults to two lines of text.
horizontal
logical indicating the barcode orientation; the default, TRUE, produces horizontal barcodes.
xlim
the x limits (xmin, xmax) of the plot; the default, NULL, uses the range of the full data, range(unlist(x)), plus the multiplicative buffer.
nint
default, 0, uses no ``binning''--- i.e., the barcode presents the exact measurements, to the precision of the data set; nint=100 uses roughly 100 ``bins'' in constructing the barcode; fewer bins give a more histogram-like plot.
xlab
the axis label for the quantitative measurements.
labelloc
for the location of the factor labels of the barcodes; default TRUE may also be specified as 'left' or 'top' (having similar results but relating to the horizontal alignment); values 'right' or 'bo
axisloc
for the location of the quantitative axis labels; default, TRUE, may also be specified as 'left' or 'top' (having similar results but relating to the horizontal alignment); values 'right' or 'botto
labelouter
default, FALSE, positions all labels within the viewport; TRUE forces the barcodes to the edge of the viewport, with the labels outside the viewport. May be of use to advanced users.
newpage
default, TRUE, creates the barcodes in a new graphics device instead of adding the plot to the current viewport.
fontsize
for the size of the axis and factor labels.
ptsize
for the size of the plotted points.
ptpch
for the type of plotted points.
bcspace
indicates the proportion of total available space occupied by the barcode part of the displays. Can range from 0 to 1; reasonable values seem to be between 0.1 and 0.5.
use.points
default FALSE uses segments instead of points in the histogram-style
display.
xlaboffset
used for tuning the position of the label of the quantitative variable; needs to be a unit.
buffer
an additional proportion of empty space added to the right and left of the barcode, to avoid having the maximum and minimum on the frame of the plot.
log
if TRUE, use the log scale for the y-axis of the histogram-like part of the barcodes.