bcaTrunc {dst} | R Documentation |
Truncation of a basic chance assignment mass function
Description
When working with large frames of discernment, the bca resulting of repeated application of Dempster's Rule of Combination can become big. One way to handle this situation could be to group subsets whose mass is less than a small treshold value. The function bcaTrunc
serves this purpose to reduce a large bca to its main elements.
Usage
bcaTrunc(x, seuil, use_ssnames = FALSE)
Arguments
x |
A bca to truncate. |
seuil |
A treshold value |
use_ssnames |
Put TRUE to use ssnames parameteer instead of description matrix. Default = FALSE. |
Value
tr_x The bca object truncated.
Author(s)
Claude Boivin
Examples
x <- bca(tt = matrix(c(0,1,0,0,
0,0,1,1,
1,1,0,0,
1,0,1,0,
0,1,1,0,
1,1,1,1),ncol=4, byrow = TRUE), m = c(0.2, 0.5, 0.06, 0.04, 0.03, 0.17),
cnames = c("a", "b", "c", "d"))
bcaPrint(x)
tr_x <- bcaTrunc(x, seuil = 0.1)
bcaPrint(tr_x)
[Package dst version 1.7.0 Index]