What Is Fuzzy Logic?

2 Tutorial
Working from the Command Line
In this section...
“The Tipping Problem from the Command Line” on page 2-72
“System Display Functions” on page 2-75
“Building a System from Scratch” on page 2-78
“FIS Evaluation” on page 2-81
“The FIS Structure” on page 2-81
The Tipping Problem from the Command Line
The tipping problem is one of many Fuzzy Logic Toolbox examples of fuzzy
inference systems. The FIS is always cast as a MATLAB structure. To load
this system (rather than bothering with creating it from scratch), type
a = readfis('tipper.fis')
This command returns the following result:
a =
name: 'tipper'
type: 'mamdani'
andMethod: 'min'
orMethod: 'max'
defuzzMethod: 'centroid'
impMethod: 'min'
aggMethod: 'max'
input: [1x2 struct]
output: [1x1 struct]
rule: [1x3 struct]
The labels on the left of this listing represent the various components of the
MATLAB structure associated with tipper.fis. You can access the various
components of this structure by typing the component name after typing a.
At the MATLAB command line, type
a.type
2-72