| eo.par {UCS} | R Documentation |
Set default graphics parameters for (e,o) plots, similar to
ucs.par in the plots module and par for general
graphics parameters. Parameter values can be set by specifying them as
arguments in name=value form, or by passing a single list of
named values. The current values can be queried by giving their names
as character strings.
eo.par(...) .eo.PAR
... |
either character strings (or vectors) specifying the names
of parameters to be queried, or parameters to be set in
name=value form, or a single list of named values. Valid
parameter names are described below. |
The current default parameters are stored in the global variable
.eo.PAR. They can be queried by giving their names as
one or more character vectors to eo.par. eo.par() (no
arguments) returns all eo graphics parameters.
Parameters are set by specifying their names and the new values as
name=value pairs. Such a list can also be passed as a single
argument to eo.par, which is typically used to restore previous
parameter values (that have been saved in a list variable).
In order to restore the "factory settings", reload the module with the
command ucs.library("eo", reload=TRUE).
When parameters are set, their former values are returned in an
invisible named list. Such a list can be passed as a single argument
to eo.par to restore the previous settings.
When a single parameter is queried, its value is returned directly. When two or more parameters are queried, the result is a named list.
Note the inconsistency, which is the same as for par: setting
one parameter returns a list, but querying one parameter returns a
vector (or a scalar, i.e. a vector of length 1).
bwTRUE, (e,o) plots are created in B/W mode
by default.
xlim, ylimxlim) and o-axis
(ylim) in orders of magnitude (i.e., base 10 logarithms: -2
corresponds to .01, 0 corresponds to 1, and 3 corresponds to
1000). When the default values are not set, every call to the
eo.setup function must either specify xlim and
ylim values or a data set, from which suitable ranges are
computed.
aspectTRUE, an aspect ratio of 1:1 is
enforced for every (e,o) plot, i.e. the axis ranges are extended
as necessary (assuming a square plotting region). The factory
setting is TRUE.
log.marksTRUE, tick marks on the axes are
labelled in logarithmic units, i.e. orders of magnitude.
Otherwise, absolute numbers are used. The factory setting is
FALSE. (Note that (e,o) plots are always drawn in
logarithmic scale.)
steps
jitterTRUE, always uses jittered
coordinates for plotting data sets and computing n-best
thresholds. Note that all data sets must be annotated with the
add.jitter function first. The factory setting is
FALSE.
cex1.3.
colpar manpage for details on colour specification).
Values are recycled to match the length of the lty and
lwd parameters when necessary. The factory setting defines
5 styles in black, blue, red, magenta and cyan.
ltypar manpage for details). Values are recycled to match
the length of the col and lwd parameters when
necessary.
lwdcol and lty
parameters when necessary.
angle, densitycol, lty and lwd
above. Details on shading lines can be found on the polygon
help page.
solid
bw.col, bw.lty, bw.lwdcol, lty and lwd in colour mode). The
factory setting defines 5 styles with solid, dashed, grey, dotted
and dark grey dot-dash lines.
bw.angle, bw.density, bw.solidangle,
density and solid in colour mode)
pt.pchpoints help page for a full list of
available plot symbols). Values are recycled to match the length
of the pt.cex and pt.col parameters when necessary.
The factory setting defines 5 styles with black, green, red,
yellow and orange dots.
pt.cexpt.pch and pt.col parameters when necessary.
pt.colpar help page for details on
colour specification). Values are recycled to match the length
of the pt.pch and pt.cex parameters when necessary.
bw.pt.pch, bw.pt.cex, bw.pt.colpt.pch, pt.cex and
pt.col in colour mode). The factory setting defines 5
styles with black dots, circles, + crosses, triangles and
x crosses.
eo.setup, eo.iso,
eo.iso.diff, eo.points,
eo.legend, ucs.par, par
print(names(ucs.eo())) # list available parameters
eo.par("col", "lty", "lwd") # the default styles for iso-lines
eo.par(c("col", "lty", "lwd")) # works as well
## temporary changes to graphics paramters:
par.save <- eo.par(bw=TRUE, steps=200)
## (e,o) plots use the modified parameters here
eo.par(par.save) # restore previous values
ucs.library("eo", reload=TRUE) # reload module for factory defaults