cenxyplot {NADA}R Documentation

Produces a censored x-y scatter plot

Description

Draws a x-y scatter plot with censored values represented by dashed lines spanning the from the censored threshold to zero.

Usage

    cenxyplot(x, xcen, y, ycen, log="xy", lty="dashed", ...)

Arguments

x A numeric vector of observations.
xcen A logical vector indicating TRUE where an observation in x is censored (a less-than value) and FALSE otherwise.
y A numeric vector of observations.
ycen A logical vector indicating TRUE where an observation in y is censored (a less-than value) and FALSE otherwise.
log A character string which contains '"x"' if the x axis is to be logarithmic, '"y"' if the y axis is to be logarithmic and '"xy"' or '"yx"' if both axes are to be logarithmic. Default is '"xy"'.
lty The line type of the lines representing the censored-data ranges.
... Additional items that get passed to plot.

Author(s)

Lopaka(Rob) Lee <rclee@usgs.gov>

Dennis Helsel <dhelsel@usgs.gov>

References

Helsel, Dennis R. (2005). Nondectects and Data Analysis; Statistics for censored environmental data. John Wiley and Sons, USA, NJ.

Examples

    data(DFe)
    with(DFe, cenxyplot(Year, YearCen, Summer, SummerCen))

[Package NADA version 1.4-1 Index]