rmmf

(Removed) Remove membership function from fuzzy inference system

rmmf has been removed. Use removeMF instead. For more information, see Version History.

Syntax

outfis = rmmf(infis,varType,varIndex,'mf',mfIndex)

Description

outfis = rmmf(infis,varType,varIndex,'mf',mfIndex) Removes the specified membership function from a given input or output variable of the fuzzy system infis.

Examples

Remove Membership Function From Variable

Create a fuzzy inference system.

fis = newfis('mysys');

Add an input variable with a single membership function to the system.

fis = addvar(fis,'input','temperature',[0 100]);
fis = addmf(fis,'input',1,'cold','trimf',[0 30 60]);

View the variable properties.

getfis(fis,'input',1)

ans = struct with fields:
      Name: 'temperature'
    NumMFs: 1
       mf1: 'cold'
     range: [0 100]

Remove the membership function. To do so, remove membership function 1 from input 1.

fis = rmmf(fis,'input',1,'mf',1);

View the variable properties.

getfis(fis,'input',1)

ans = struct with fields:
      Name: 'temperature'
    NumMFs: 0
     range: [0 100]

The variable now has no membership function.

Input Arguments

infis — Fuzzy system

mamfis object | sugfis object

Fuzzy system, specified as a FIS object.

varType — Variable type

'input' | 'output'

Variable type, specified as either 'input' or 'output'.

varIndex — Variable index

positive integer

Variable index, specified as a positive integer.

mfIndex — Membership function index

positive integer

Membership function index, specified as a positive integer.

Output Arguments

outfis — Updated fuzzy system

mamfis object | sugfis object

Updated fuzzy system, returned as a FIS object.

Version History

Introduced before R2006a

R2024b: Removed

rmmf has been removed. Use removeMF instead.

The following table shows some typical usages of rmmf and how to update your code to use removeMF instead. Previously, you specified the index of the variable from which you wanted to remove the membership function and the index of the membership function that you wanted to remove. Now, to remove a membership function, specify the variable name and the membership function name.

If your code has this form:	Use this code instead:
fis = rmmf(fis,'input',1,'mf',1)	fis = removeMF(fis,"service","poor")
fis = rmmf(fis,'output',1,'mf',1)	fis = removeMF(fis,"tip","cheap")

Previously, you had to delete any references to a membership function you wanted to remove from the rule set. removeMF automatically removes these references from the rule set of your fuzzy system.

R2019b: Warns

rmmf issues a warning that it will be removed in a future release.

R2018b: To be removed

rmmf runs without warning, but Code Analyzer indicates that rmmf will be removed in a future release.