trackr (version 0.10.7)

nObs: Accessor method for the number of observations (slot "nobs") of the plot object.

Description

Number of observations plotted in a plot or associated PlotFeatureSet.

Usage

nObs(object)
# S4 method for PlotFeatureSet
nObs(object)
# S4 method for trellis
nObs(object)
# S4 method for gTree
nObs(object)
# S4 method for PlotFeatureSet
nObs(object)
# S4 method for ggplot
nObs(object)

Arguments

object

An object of class PlotFeatureSet, GGplotFeatureSet, TrellisFeatureSet, ggplot, or trellis.

Value

An integer representing the number of observations in the plotted data.

Examples

# NOT RUN {
library(ggplot2)
mt = datasets::mtcars
plt = qplot(mt$mpg, mt$cyl)
fs = makeFeatureSet(plt)
nObs(fs)
# }