R: The summary function of lower and upper approximations based...

summary.LowerUpperApproximation {RoughSets} | R Documentation

## The summary function of lower and upper approximations based on RST and FRST

### Description

This function enables the output of a summary of the lower and upper approximations.

### Usage

    ## S3 method for class 'LowerUpperApproximation'
    summary(object, ...)

### Arguments

`object` | a `"LowerUpperApproximation"` object. See `BC.LU.approximation.FRST` and `BC.LU.approximation.RST`.
`...` | the other parameters.

### Author(s)

Lala Septem Riza

### Examples

    #######################################
    ## Example: Using simple data set
    #######################################
    dt.ex1 <- data.frame(c(1,0,2,1,1,2,2,0), c(0, 1,0, 1,0,2,1,1),
                            c(2,1,0,0,2,0,1,1), c(2,1,1,2,0,1,1,0), c(0,2,1,2,1,1,2,1))
    colnames(dt.ex1) <- c("aa", "bb", "cc", "dd", "ee")
    decision.table <- SF.asDecisionTable(dataset = dt.ex1, decision.attr = 5,
                                         indx.nominal = c(1:5))

    P <- c(2,3)

    ####### Compute indiscernibility relation #######
    IND <- BC.IND.relation.RST(decision.table, feature.set = P)

    ####### Compute lower and upper approximation #####
    roughset <- BC.LU.approximation.RST(decision.table, IND)

    summary(roughset)

[Package RoughSets version 1.3-7 Index]