CL_interpLin

Description

• Linear interpolation.

  Given reference abscissae (xref) sorted in strictly increasing order and corresponding ordinates (yref), the function computes interpolated ordinates for the given abscissae (x).

• Notes:

  - y = %nan for values of x that are outside [xref(1),xref($)]

Parameters

xref:

Reference abscissae, sorted in strictly increasing order (1xN)

yref:

Corresponding ordinates (PxN)

x:

Abscissae, where to interpolate (1xM)

y:

Interpolated values (PxM)

Authors

• CNES - DCT/SB

See also

• CL_interpLagrange

Examples

// Example 1: Exact interpolation xref = 1:6; yref = [3*xref; -1+8*xref]; x = 0:0.5:4; [y] = CL_interpLin(xref, yref, x); y - [3*x; -1+8*x] // Example 2: Interpolation of sin and cos xref = linspace(0,1,101); yref = [sin(2*%pi*xref); cos(2*%pi*xref)]; x = linspace(0,1,1001); [y] = CL_interpLin(xref, yref, x); scf(); plot(x, y - [sin(2*%pi*x); cos(2*%pi*x)]);