hedge: Linguistic hedges

In lfl: Linguistic Fuzzy Logic

Linguistic hedges

Description

Returns a function that realizes linguistic hedging - i.e. transformation of linguistic horizon (see horizon()) into a linguistic expression.

Usage

hedge(
  type = c("ex", "si", "ve", "ty", "-", "ml", "ro", "qr", "vr"),
  hedgeParams = defaultHedgeParams
)

Arguments

type	The type of the required linguistic hedge
hedgeParams	Parameters that determine the shape of the hedges

Details

hedge() returns a function that realizes the selected linguistic hedge on its parameter:

• ex: extremely,

• si: significantly,

• ve: very,

• ty: typically,

• -: empty hedge (no hedging),

• ml: more or less,

• ro: roughly,

• qr: quite roughly,

• vr: very roughly.

This function is quite low-level. Perhaps a more convenient way to create linguistic expressions is to use the lingexpr() function.

Value

Returns a function with a single argument, which has to be a numeric vector.

Author(s)

Michal Burda

See Also

horizon(), lingexpr(), fcut(), lcut(), ctx()

Examples

    a <- horizon(ctx3(), 'sm')
    plot(a)
    h <- hedge('ve')
    plot(h)
    verySmall <- function(x) h(a(x))
    plot(verySmall)

    # the last plot should be equal to:
    plot(lingexpr(ctx3(), atomic='sm', hedge='ve'))

lfl documentation built on Oct. 30, 2024, 9:27 a.m.