image.bma: Plot Signs of Best Models

In BMS: Bayesian Model Averaging Library

Plot Signs of Best Models

Description

Plots a grid with signs and inclusion of coefficients vs. posterior model probabilities for the best models in a 'bma' object:

Usage

## S3 method for class 'bma'
image(
  x,
  yprop2pip = FALSE,
  order.by.pip = TRUE,
  do.par = TRUE,
  do.grid = TRUE,
  do.axis = TRUE,
  cex.axis = 1,
  ...
)

Arguments

x	a list of class bma (cf. bms for further details)
yprop2pip	if yprop2pip=TRUE then the grid lines on the vertical axis are scaled according to the coefficients' inclusion probabilites. If yprop2pip=FALSE (default) then the grid lines on the vertical axis are equidistant.
order.by.pip	with order.by.pip=TRUE (default), coefficients are sorted according to their posterior inclusion probabilites along the vertical axis. If order.by.pip=FALSE they are ordered as they were provided to bms.
do.par	Defaults to do.par=TRUE, which adjusts par()$mar for optimal positioning. Set do.par=FALSE for customizing par yourself.
do.grid	do.grid=TRUE (default) plots grid lines among the chart's boxes, akin to the low level command grid. do.grid=FALSE omits the grid lines.
do.axis	do.axis=TRUE (default) plots axis tick marks and labels (cf. axis). do.axis=FALSE omits them.
cex.axis	font size for the axes (cf. axis), defaults to 1
...	Parameters to be passed on to image.default.

Details

Under default settings, blue corresponds to positive sign, red to a negative sign, white to non-inclusion.

See Also

coef.bma for the coefficients in matrix form, bms for creating 'bma' objects.

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

Examples

 data(datafls)
 
 model=bms(datafls,nmodel=200)
 
 #plot all models
 image(model,order.by.pip=FALSE)
 image(model,order.by.pip=TRUE,cex.axis=.8)
 
 #plot best 7 models, with other colors
 image(model[1:7],yprop2pip=TRUE,col=c("black","lightgrey"))
 

BMS documentation built on Aug. 9, 2022, 5:08 p.m.