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Fit type for curve and surface fitting

creates the `aFittype`

= fittype(`libraryModelName`

)`fittype`

object `aFittype`

for the model specified by `libraryModelName`

.

creates a fit type for the model specified by the MATLAB`aFittype`

= fittype(`expression`

)^{®} expression.

constructs the fit type with additional options specified by one or more
`aFittype`

= fittype(`expression`

,`Name,Value`

)`Name,Value`

pair arguments.

creates a fit type for a custom linear model with terms specified the
expressions in `aFittype`

= fittype(`linearModelTerms`

)`linearModelTerms`

.

constructs the fit type with additional options specified by one or more
`aFittype`

= fittype(`linearModelTerms`

,`Name,Value`

)`Name,Value`

pair arguments.

creates a fit type for the model specified by
`aFittype`

= fittype(`anonymousFunction`

)`anonymousFunction`

.

constructs the fit type with additional options specified by one or more
`aFittype`

= fittype(`anonymousFunction`

,`Name,Value`

)`Name,Value`

pair arguments.

If the fit type expression input is a character vector, string scalar, or anonymous function, then the toolbox uses a nonlinear fitting algorithm to fit the model to data.

If the fit type expression input is a cell array or string array of terms, then the toolbox uses a linear fitting algorithm to fit the model to data.