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#' PlotMF/s ANFIS' MembershipFunction domain/s
#'
#' Plot the corresponding MembershipFunctions for each/all input/s domain.
#'
#' @param object ANFIS class object.
#' @param x numeric sequence to evaluate each MembershipFunction.
#' @param input integer with the input MembershipFunctions to plot.
#' @param ... plot additional parameters.
#'
#' @return output graphics
#'
#' @include Anfis-printshow.R
#' @exportMethod plotMF
#' @docType methods
#' @name plotMF
#' @rdname ANFIS-plotMF
#' @aliases plotMF-methods
#' @seealso \code{\link{ANFIS-class}}
#' @note see full example in \code{\link{ANFIS-class}}
#' @family ANFIS
#' @author Cristobal Fresno \email{cfresno@@bdmg.com.ar}, Andrea S. Llera
#' \email{ALlera@@leloir.org.ar} and Elmer A. Fernandez
#' \email{efernandez@@bdmg.com.ar}
setGeneric(name="plotMF", def=function(object, x, input, ...){
standardGeneric("plotMF")
})
#'
#' @name plotMF
#' @rdname ANFIS-plotMF
#' @aliases plotMF,ANFIS-method
#' @inheritParams plotMF
setMethod(f="plotMF", signature="ANFIS",
definition=function(object, x, input, ...){
##Check parameters
if(input <= 0 | input > ncol(object@X)){
stop("Wrong input number")
}
##The domain
plot(x, y=evaluateMF(object@premises[[input]][[1]],x), type ="l",
xlab=paste("Input Space #",input), ylab="Membership", ...)
lapply(object@premises[[input]][-1],function(MF){
lines(x,y=evaluateMF(MF,x))})
return(invisible())
})
#'
#' @exportMethod plotMFs
#' @docType methods
#' @name plotMFs
#' @rdname ANFIS-plotMF
#' @inheritParams plotMF
#' @aliases plotMFs-methods
setGeneric(name="plotMFs", def=function(object, ...){
standardGeneric("plotMFs")
})
#'
#' @name plotMFs
#' @rdname ANFIS-plotMF
#' @inheritParams plotMF
#' @aliases plotMFs,ANFIS-method
setMethod(f="plotMFs", signature="ANFIS", definition=function(object, ...){
par(mfrow=c(1,ncol(object@X)))
invisible(sapply(1:ncol(object@X),function(input){
plotMF(object, seq(from=min(object@X[, input]), to=max(object@X[, input]),
by=0.01), input=input, ...)
return(NULL)
}))
})
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