spreval (version 1.1.0)

rotecdf: Swap axis of ecdf plot and reverse y axis

Description

plots points generated from an `stats::ecdf` object with x and y axis swapped (x is cumulative frequency) and with y axis reversed so that min(y)=0 is at top. Plots points without step function lines.

Usage

rotecdf(x,target=NA,xlab=NULL,ylab=NULL,...)

Arguments

x

numeric array

target

target, a constant, e.g., target depth of irrigation.

xlab

label for x axis, standard default provided.

ylab

label for y axis, e.g., depth applied. Default is name of object x if not supplied.

...

further graphical parameters to pass to internal calls to plot.default

Value

rotated ecdf plot.

Details

A minimum y of 0 is forced such that the plot can be interpreted at 0 being ground surface. If `target` is supplied, a horizontal line at the value of target is drawn. Points and area below the target line indicate water applied in excess of the target amount.

See Also

sfplot, ecdf

Examples

# NOT RUN {
target<-3
# generate data with mean of target amount and high variability (non-uniformity)
x<-rnorm(25,3,1.75)
rotecdf(x,target,ylab="depth applied (caught)")
# generate data with mean of target amount and low varibility (uniformity)
xx<-rnorm(25,3,0.5)
#no y axis label provided - defaults to array object name.  Pass additional non-default
#graphical parameters
rotecdf(xx,target,lty=2,pch=2)
# }