This paper presents an explanation of a fuzzy model considering the co
rrelation among components of input data. Generally, fuzzy models have
a capability of dividing an input space into several subspaces compar
ed to a linear model. But hitherto suggested fuzzy modeling algorithms
have not taken into consideration the correlation among components of
sample data and have addressed them independently, which results in a
n ineffective partition of the input space. In order to solve this pro
blem, this paper proposes a new fuzzy modeling algorithm, which partit
ions the input space more effectively than conventional fuzzy modeling
algorithms by taking into consideration the correlation among compone
nts of sample data. As a way to use the correlation and divide the inp
ut space, the method of principal component is used. Finally, the resu
lts of the computer simulation are given to demonstrate the validity o
f this algorithm.