Open Curve Fitting app
sftool
sftool(x,y,z)
sftool(x,y,z,w)
sftool(filename)
Note
sftool will be removed in a future release. Use
cftool instead. See Curve Fitting.
sftool opens Curve Fitting app or brings focus to the tool if
it is already open.
sftool(x,y,z) creates a fit to x and
y inputs (or predictor data) and z output
(or response data). sftool opens Curve Fitting app if
necessary.
x, y, and z must be
numeric, have two or more elements, and have compatible sizes. Sizes are compatible
if either:
x, y, and z
all have the same number of elements, or
x and y are vectors,
z is a 2D matrix, where length(x) =
n, length(y) = m, and [m,n] =
size(z).
sftool(x,y,z,w) creates a fit with weights
w. w must be numeric and have the same
number of elements as z.
sftool( loads the surface
fitting session in filename)filename into Curve Fitting app. The
filename should have the extension
.sfit.
Infs, NaNs, and imaginary parts of complex
numbers are ignored in the data.
Curve Fitting app provides a flexible interface where you can interactively fit curves and surfaces to data and view plots. You can:
Create, plot, and compare multiple fits
Use linear or nonlinear regression, interpolation, local smoothing regression, or custom equations
View goodness-of-fit statistics, display confidence intervals and residuals, remove outliers and assess fits with validation data
Automatically generate code for fitting and plotting surfaces, or export fits to workspace for further analysis