Usage
dotchart2(data, labels, groups=NULL, gdata=NA, horizontal=TRUE, pch=16, xlab='', ylab='', xlim=NULL, auxdata, auxgdata=NULL, auxtitle, lty=1, lines=TRUE, dotsize = .8, cex = par("cex"), cex.labels = cex, cex.group.labels = cex.labels*1.25, sort.=TRUE,
add=FALSE, dotfont=par('font'), groupfont=2,
reset.par=add, xaxis=TRUE, width.factor=1.1, lcolor='gray', leavepar=FALSE, axisat=NULL, axislabels=NULL, ...)
Arguments
data
a numeric vector whose values are shown on the x-axis
labels
a vector of labels for each point, corresponding to
x
. If omitted, names(data)
are used, and if there are
no names
, integers prefixed by "#"
are used.
groups
an optional categorical variable indicating how
data
values are grouped
gdata
data values for groups, typically summaries such as group
medians
horizontal
set to FALSE
to make the chart vertical
instead of the default
pch
default character number or value for plotting dots in dot charts.
The default is 16.
xlim
x-axis limits. Applies only to horizontal=TRUE
.
auxdata
a vector of auxiliary data given to dotchart2
, of the same length
as the first (data
) argument. If present, this
vector of values will be printed outside the right margin of the dot
chart. Usually auxdata
represents cell sizes.
auxgdata
similar to auxdata
but corresponding to the gdata
argument. These usually represent overall sample sizes for each
group of lines.
auxtitle
if auxdata
is given, auxtitle
specifies a column
heading for the extra printed data in the chart, e.g., "N"
lty
line type for horizontal lines. Default is 1 for R, 2 for S-Plus
lines
set to FALSE
to suppress drawing of reference
lines
dotsize
cex
value for drawing dots. Default is 0.8. Note that the original
dotchart
function used a default of 1.2.
cex.labels
cex
parameter that applies only to the line labels for the
dot chart cex
parameter for major grouping labels for
dotchart2
. Defaults to cex
.
cex.group.labels
value of cex
corresponding to gdata
sort.
set to FALSE
to keep dotchart2
from sorting the input
data, i.e., it will assume that the data are already properly
arranged. This is especially useful when you are using gdata
and groups
and you want to control the
order that groups appear on the chart (from top to bottom).
add
set to TRUE
to add to an existing plot
dotfont
font number of plotting dots. Default is one. Use -1
to
use "outline" fonts. For example, pch=183, dotfont=-1
plots an open circle for UNIX on postscript. pch=1
makes
an open octagon under Windows.
groupfont
font number to use in drawing group
labels for dotchart2
.
Default is 2
for boldface.
reset.par
set to FALSE
to cause dotchart2
to not reset the par
parameters when finished. This is useful when add=TRUE
is about to
be used in another call. The default is to reset the par
parameters if add=TRUE
and not if add=FALSE
, i.e., the
program assumes that only one set of points will be added to an
existing set. If you fail to use reset.par=TRUE
for the
first of a series of plots, the next call to plot
with
add=TRUE
will result in distorted x-axis scaling.
xaxis
set to FALSE
to suppress drawing x-axis
width.factor
When the calculated left margin turns out to be faulty, specify a
factor by which to multiple the left margin as width.factor
to get
the appropriate space for labels on horizonal charts.
lcolor
color for horizontal reference lines. Default is "gray"
for R,
par("col")
for S-Plus.
leavepar
set to TRUE
to leave par()
unchanged.
This assumes the user has allocated sufficient left and right
margins for a horizontal dot chart.
axisat
a vector of tick mark locations to pass to axis
.
Useful if transforming the data axis
axislabels
a vector of strings specifying axis tick mark
labels. Useful if transforming the data axis
...
arguments passed to plot.default