Linear interpolation function.

Syntax

New_y = LinInterp(Old_x, Old_y, New_x, Option)

Arguments

Name

Description

Old_x

A vector of the x data of the curve to be interpolated.

Old_y

A vector of the y data of the curve to be interpolated.

New_x

A vector containing x values for which new y values are to be calculated.

Option

optional)

Set to "extrap" to allow extrapolation when values of New_x are beyond the range of Old_x. The default is "noextrap."

Outputs

Name

Description

New_y

A vector of the new y values at the given new x values.

Example

For a given pair of data vectors, find the linear interpolation at new locations

Syntax

y = LinInterp([1,2,3,4],[2,8,18,32] ,[1.1,3.2])

Results

y =   2.6          20.8

See Also:

Spline