@ -59,8 +59,8 @@ def linregr2d_SZ(x, y, sigma=None):
sigma_a2 = d12 * (-detinv)
sigma_b2 = d21 * (-detinv)
print sigma_a2
print sigma_b2
#print sigma_a2
#print sigma_b2
return fit_result(
fit_method='linregr2d_SZ',