plot.pred.density {BMS}R Documentation

Predictive Densities for bma Objects

Description

Plots predictive densities for conditional forecasts of class 'pred.density'

Usage

## S3 method for class 'pred.density':
 ## S3 method for class 'pred.density'
plot(x, predict_index = NULL, addons = "eslz", realized.y = NULL, 
    addons.lwd = 1.5, ...) 
 

Arguments

x

an object of class pred.density

predict_index

An integer vector detailing which forecasted observations (corresponding to the argument newdata in pred.density) should be plotted.
Or the observation names to be plotted (as in rownames(newdata)).

addons

character, defaulting to "eslz". Specifies which additional information should be added to the plot via low-level commands (see 'Details' below).

realized.y

A vector with realized values of the dependent variables to be plotted in addition to the predictive density, must have its length conforming to predict_index (or newdata)

addons.lwd

Line width to be used for the low-level plotting commands specified by addons. Cf. argument lwd in par.

...

arguments to be passed on to plot.density.

Details

The argument addons specifies what additional information should be added to the plot(s) via the low-level commands lines and legend:
"e" for the posterior expected value (EV) of the prediction,
"s" for 2 times its posterior standard deviation ('standard errors'),
"z" for a zero line, "l" for including a legend

Any combination of these letters will give the desired result. Use addons="" for not using any of these.

Author(s)

Martin Feldkircher and Stefan Zeugner

See Also

pred.density for constructing predictive densities, bms for creating bma objects, density.bma for plotting coefficient densities

Check http://bms.zeugner.eu for additional help.

Examples

 data(datafls)
 mm=bms(datafls,user.int=FALSE)
 
 #predictive density for two 'new' data points
 pd=pred.density(mm,newdata=datafls[1:2,]) 
 
 
 #plot the density for the second forecast observation
 plot(pd,2)  
 
 #plot the density with realized dep. variable, and no standard errors
 plot(pd, 1, realized.y=0,addons="lzeg") 
 
 
 

[Package BMS version 0.3.4 Index]