A data frame of dose-effect data (typically, the output from
dataprep) containing at least five variables:
dose, pfx, log10dose, bitpfx, fxcateg.
xlab
A character scalar, the title for the dose (x) axis, default "Dose".
ylab
A character scalar, the title for the affected (y) axis,
default "Affected (%)".
xlim
A numeric vector of length two giving the x coordinate range for
dose, default range(DEdata$dose, na.rm=TRUE).
ylim
A numeric vector of length two giving the y coordinate range for
affected (%), default c(0.1, 99.9).
Observed effects beyond this range will be plotted at the limits of this
range using an open symbol.
grid
A logical scalar indicating if a background grid should be plotted,
default TRUE.