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Owning Classes: approximation and resampling
Requires: MathScript RT Module
yy = spline(x, y, xx)
Computes the cubic spline interpolation of the input data.
Name | Description |
---|---|
x | Specifies a vector. |
y | Specifies a real or complex vector. If y has the same length as x, LabVIEW adapts not-a-knot end conditions. If y has two more elements than x, LabVIEW uses the first and last elements of y as the end slopes for the cubic spline. y also can be a matrix that represents a vector-valued piecewise polynomial. In this case, each column of y represents the value of one point. |
xx | Specifies the new abscissa. xx is a vector. |
Name | Description |
---|---|
yy | Returns the values of a piecewise polynomial corresponding to xx. yy is a vector. |
The following table lists the support characteristics of this function.
Supported in the LabVIEW Run-Time Engine | Yes |
Supported on RT targets | Yes |
Suitable for bounded execution times on RT | Not characterized |
X = 0:6;
Y = [pi/2, 0, 1, 0, -1, 0, pi/2];
XX = 0:0.1:6;
YY = spline(X, Y, XX);
plot(X, Y, 'o', XX, YY, '-')
YY = spline(0:4, [0, 1, 0, -1, 0, 1, 0; pi/2, 0, 1, 0, -1, 0, pi/2], 0:0.1:4)