logcondens (version 2.1.5)

plot.dlc: Standard plots for a dlc object

Description

plot method for class "dlc". Three plots (selectable by which) are currently available: a plot of the estimated density, the estimated log-density, or the distribution function corresponding to the estimated log-concave density. By default, a plot of the density estimate is provided. If smoothed = TRUE, the smoothed version of the log-concave density estimate (saved in x) is added to the density and log-density plot. For the CDF, the smoothed version is not contained by default in a dlc object and needs to be computed when asked to be plotted.

Usage

# S3 method for dlc
plot(x, which = c("density", "log-density", "CDF"), 
    add.title = TRUE, legend.pos = "topright", …)

Arguments

x

An object of class "dlc", usually a result of a call to logConDens.

which

One of "density", "log-density", or "CDF".

add.title

Logical, if TRUE adds a standard title to the plot.

legend.pos

Placement of the legend. One of "bottomright", "bottom", "bottomleft", "left", "topleft", "top", "topright", "right", "center"; or "none" for not displaying a legend. See legend for details.

…

Further arguments.

Value

Chosen plot is generated.

Details

See activeSetLogCon and evaluateLogConDens for details on the computations.

References

Duembgen, L, Huesler, A. and Rufibach, K. (2010). Active set and EM algorithms for log-concave densities based on complete and censored data. Technical report 61, IMSV, Univ. of Bern, available at http://arxiv.org/abs/0707.4643.

Duembgen, L. and Rufibach, K. (2009). Maximum likelihood estimation of a log--concave density and its distribution function: basic properties and uniform consistency. Bernoulli, 15(1), 40--68.

Duembgen, L. and Rufibach, K. (2011) logcondens: Computations Related to Univariate Log-Concave Density Estimation. Journal of Statistical Software, 39(6), 1--28. http://www.jstatsoft.org/v39/i06

Examples

# NOT RUN {
## See help file of function "logConDens".
# }