| dotchart2 {Hmisc} | R Documentation |
dotchart2 is an enhanced version of the dotchart function
with several new options.
dotchart2(data, labels, groups, gdata, horizontal=TRUE, pch=16,
xlab='', ylab='', auxdata, auxgdata=NULL, auxtitle,
lty=if(.R.) 1 else 2, 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=if(under.unix)5 else 1,
reset.par=add, xaxis=TRUE, width.factor=if(.R.)1.5 else 1,
lcolor=if(.R.)'gray' else par('col'), ...)
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. |
xlab |
x-axis title |
ylab |
y-axis title |
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 |
see par |
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 5 for UNIX, which is usually Helvetica bold. For
Microsoft Windows, the default is 1. The font number
corresponding to some bold font is recommended, if you can figure this
out for Windows S-Plus.
|
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. |
... |
arguments passed to plot.default |
dotchart will leave par altered if reset.par=FALSE.
Frank Harrell
Department of Biostatistics
Vanderbilt University
f.harrell@vanderbilt.edu