diff options
Diffstat (limited to 'Wrappers/Python')
| -rw-r--r-- | Wrappers/Python/ccpi/optimisation/functions/KullbackLeibler.py | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/Wrappers/Python/ccpi/optimisation/functions/KullbackLeibler.py b/Wrappers/Python/ccpi/optimisation/functions/KullbackLeibler.py index dc0411e..51a008f 100644 --- a/Wrappers/Python/ccpi/optimisation/functions/KullbackLeibler.py +++ b/Wrappers/Python/ccpi/optimisation/functions/KullbackLeibler.py @@ -63,7 +63,6 @@ class KullbackLeibler(Function): return 1 - self.b/(x + self.bnoise) else: x.add(self.bnoise, out=out) - self.b.divide(out, out=out) out.subtract(1, out=out) out *= -1 @@ -106,16 +105,18 @@ class KullbackLeibler(Function): z = x + tau * self.bnoise return 0.5*((z + 1) - ((z-1)**2 + 4 * tau * self.b).sqrt()) else: - z_m = x + tau * self.bnoise -1 - self.b.multiply(4*tau, out=out) - z_m.multiply(z_m, out=z_m) - out += z_m - out.sqrt(out=out) - z_m.sqrt(out=z_m) - z_m += 2 - out *= -1 - out += z_m - out *= 0.5 + z = x + tau * self.bnoise + out.fill( 0.5*((z + 1) - ((z-1)**2 + 4 * tau * self.b).sqrt()) ) + #z_m = x + tau * self.bnoise -1 + #self.b.multiply(4*tau, out=out) + #z_m.multiply(z_m, out=z_m) + #out += z_m + #out.sqrt(out=out) + #z_m.sqrt(out=z_m) + #z_m += 2 + #out *= -1 + #out += z_m + #out *= 0.5 |