qinterp

qinterp

Lays a parabola through three points around each peak value and calculates the interpolated peak. The result is a one or two row vector or matrix.

Usage:

qinterp(x, y, ipeak, nwidth)

Parameters:

x

The number for x[i] = i*number or the x-scale vector.

y

The data vector (function).

ipeak

The indices of the peak values or the center of the interpolation.

nwidth

The width of the interpolation. The default is 1.

Return Type:

vector or matrix

Result:

row 1 = xpeak[]

row 2 = ypeak[]