fwhm

Compute the full width at half maximum.

Syntax

fwhm_val = fwhm(f, x)
fwhm_val = fwhm(f, x, plot_fwhm)
[fwhm_val, fwhm_pos] = fwhm(f, x)

Description

fwhm calculates the Full Width at Half Maximum (FWHM) of a positive 1D input function f(x) with spacing given by x.

For example, running the code

x = -pi/2:pi/20:pi/2;
f = cos(x); 
fwhm(f, x, true);

produces the output

Inputs

f	f(x)
x	x data or dx

Optional Inputs

plot_fwhm

Boolean controlling whether a plot of the function and FWHM is produced

Outputs

fwhm_val	FWHM of f(x)
fwhm_pos	position of leading and trailing edges