Python: Find Fwhm Of Curve

I'm trying to find the FWHM of this curve: array([ 7.83891873e+10, 1.01884187e+11, 1.41597108e+11, 2.13425504e+11, 3.62335668e+11, 6.58172740e+11, 1.4914

Solution 1:

y=array([  7.83891873e+10,   1.01884187e+11,   1.41597108e+11,
         2.13425504e+11,   3.62335668e+11,   6.58172740e+11,
         1.49147209e+12,   3.67126510e+12,   9.13961052e+12,
         1.51912641e+13,   1.56449601e+13,   8.75926436e+12,
         3.51770483e+12,   1.44762974e+12,   6.03263316e+11,
         3.14433592e+11,   1.93097056e+11,   1.37103090e+11,
         1.03367989e+11,   8.62706418e+10])

max_y = max(y)  # Find the maximum y value
xs = [x for x in range(20) if y[x] > max_y/2.0]
print min(xs), max(xs) # Print the points at half-maximum