Fuzzy Logic Toolbox    

Chapter 3
Function Reference

Functions by Category

This section of the chapter contains brief descriptions of all the functions in the Fuzzy Logic Toolbox. The following tables contain the functions listed by topic.

GUI Tools

Function
 Purpose
anfisedit
 ANFIS Editor GUI.
fuzzy
 Basic FIS Editor.
mfedit
 Membership Function Editor.
ruleedit
 Rule Editor and parser.
ruleview
 Rule Viewer and fuzzy inference diagram.
surfview
 Output Surface Viewer.
Membership Functions

Function
 Purpose  
dsigmf
 Difference of two sigmoid membership functions.
gauss2mf
 Two-sided Gaussian curve membership function.
gaussmf
 Gaussian curve membership function.
gbellmf
 Generalized bell curve membership function.
pimf
 Pi-shaped curve membership function.
psigmf
 Product of two sigmoidal membership functions.
smf
 S-shaped curve membership function.
sigmf
 Sigmoid curve membership function.
trapmf
 Trapezoidal membership function.
trimf
 Triangular membership function.
zmf
 Z-shaped curve membership function.
FIS Data Structure Management

Function
 Purpose  
addmf
 Add membership function to FIS.
addrule
 Add rule to FIS.
addvar
 Add variable to FIS.
defuzz
 Defuzzify membership function.
evalfis
 Perform fuzzy inference calculation.
evalmf
 Generic membership function evaluation.
gensurf
 Generate FIS output surface.
getfis
 Get fuzzy system properties.
mf2mf
 Translate parameters between functions.
newfis
 Create new FIS.
parsrule
 Parse fuzzy rules.
plotfis
 Display FIS input-output structure.
plotmf
 Plot all of the membership functions associated with a given variable.
readfis
 Load FIS from disk.
rmmf
 Remove membership function from FIS.
rmvar
 Remove variable from FIS.
setfis
 Set fuzzy system properties.
showfis
 Display annotated FIS.
showrule
 Display FIS rules.
writefis
 Save FIS to disk.
Advanced Techniques

Function
 Purpose
anfis
 Training routine for a Sugeno-type FIS (MEX only).
fcm
 Find clusters with FCM clustering.
genfis1
 Generate FIS matrix using grid method.
genfis2
 Generate FIS matrix using subtractive clustering.
subclust
 Find cluster centers with subtractive clustering.
Simulink Blocks

Function
 Purpose
fuzblock
 Fuzzy logic controller blocks and demo blocks.
sffis
 Fuzzy inference S-function.


Function
 Purpose  
defuzzdm
 Defuzzification methods.
fcmdemo
 FCM clustering demo (2-D).
fuzdemos
 GUI for Fuzzy Logic Toolbox demos.
gasdemo
 ANFIS demo for fuel efficiency using subclustering.
juggler
 Ball-juggler with Rule Viewer.
invkine
 Inverse kinematics of a robot arm.
irisfcm
 FCM clustering demo (4-D).
noisedm
 Adaptive noise cancellation.
slbb
 Ball and beam control (Simulink ).
slcp
 Inverted pendulum control (Simulink ).
sltank
 Water level control (Simulink).
sltankrule
 Water level control with Rule Viewer (Simulink).
sltbu
 Truck backer-upper (Simulink only).
Demos

 Bibliography Alphabetical List of Functions