Usage
panel.needle(x, y, horizontal = TRUE,
pch, col, lty, lwd,
col.line, levels.fos,
groups = NULL,
...)Arguments
x,y
variables to be plotted in the panel. Typically y is the
'factor'
horizontal
logical. If FALSE, the plot is `transposed' in the
sense that the behaviours of x and y are switched. x is now
the `factor'. Interpretation of other arguments change
accordingly. See documentation of bwplot for a fuller
expla
pch, col, lty, lwd, col.line
graphical parameters
levels.fos
locations where reference lines will be drawn
groups
grouping variable (affects graphical parameters)
...
extra parameters, passed to panel.xyplot which is responsible
for drawing the foreground points (panel.dotplot only draws
the background reference lines).