Math-Inter-Extrapolate
See more related video:Origin VT-0010 Interpolation
Interpolation/extrapolation is a method of estimating and constructing new data points from a discrete set of known data points. This function generates a uniform linearly spaced interpolated curve by one of four methods: Linear, Cubic Spline, Cubic B-Spline, and Akima Spline. In Origin, the interpolation tool also supports Apparent Interpolation so it can interpolate data according to current axis settings.
The dialog box calls the interp1xy X-Function to perform the interpolate/extrapolate calculation.
Controls recalculation of analysis results:
For more information, see: Recalculating Analysis Results
Specifies the XY range to be interpolated.
For help with range controls, see: Specifying Your Input Data
Specify the interpolation/extrapolation method.
It supplies two options for generating X Data
The start X value of interpolated curve.
Note: if want to generate a descending x data, you can X Start>X End.
The end X value of interpolated curve.
Boundary condition is only available in Cubic Spline method.
A non-negative parameter that specifies the smoothness of the interpolated curve in Cubic B-Spline interpolation. The factor helps user control the balance between the smoothing and closeness. Larger values will result in smoother curves.
Smoothing is only available in Cubic B-Spline method.
Spline coefficients when using spline or B-spline method.
Available only when the interpolation is performed on a graph. If selected, interpolation is performed using apparent values when the axes scale type has been changed (from linear to log10, for instance).
Specifies the output XY data range.
For algorithm details, please refer to Interpolate Extrapolate Y from X.
For reference details, please refer to Interpolate/Extrapolate Y from X.