Python COBYLA示例

示例#1

print(opt_prob.solution(0))

# Instantiate Optimizer (SLSQP) & Solve Problem
slsqp = SLSQP()
slsqp.setOption('IPRINT', -1)
slsqp(opt_prob, sens_type='FD')
print(opt_prob.solution(1))

# Instantiate Optimizer (CONMIN) & Solve Problem
conmin = CONMIN()
conmin.setOption('IPRINT', 0)
conmin(opt_prob, sens_type='CS')
print(opt_prob.solution(2))

# Instantiate Optimizer (COBYLA) & Solve Problem
cobyla = COBYLA()
cobyla.setOption('IPRINT', 0)
cobyla(opt_prob)
print(opt_prob.solution(3))

# Instantiate Optimizer (SOLVOPT) & Solve Problem
solvopt = SOLVOPT()
solvopt.setOption('iprint', -1)
solvopt(opt_prob, sens_type='FD')
print(opt_prob.solution(4))

# Instantiate Optimizer (KSOPT) & Solve Problem
ksopt = KSOPT()
ksopt.setOption('IPRINT', 0)
ksopt(opt_prob, sens_type='FD')
print(opt_prob.solution(5))

示例#2

文件： rosenbrock.py 项目： svn2github/pyopt

print opt_prob.solution(0)

# Instantiate Optimizer (SLSQP) & Solve Problem
slsqp = SLSQP()
slsqp.setOption('IPRINT',-1)
slsqp(opt_prob,sens_type='FD')
print opt_prob.solution(1)

# Instantiate Optimizer (CONMIN) & Solve Problem
conmin = CONMIN()
conmin.setOption('IPRINT',0)
conmin(opt_prob,sens_type='CS')
print opt_prob.solution(2)

# Instantiate Optimizer (COBYLA) & Solve Problem
cobyla = COBYLA()
cobyla.setOption('IPRINT',0)
cobyla(opt_prob)
print opt_prob.solution(3)

# Instantiate Optimizer (SOLVOPT) & Solve Problem
solvopt = SOLVOPT()
solvopt.setOption('iprint',-1)
solvopt(opt_prob,sens_type='FD')
print opt_prob.solution(4)

# Instantiate Optimizer (KSOPT) & Solve Problem
ksopt = KSOPT()
ksopt.setOption('IPRINT',0)
ksopt(opt_prob,sens_type='FD')
print opt_prob.solution(5)