Form a list twice as long as the longest of the arguments callput, K, time whose first half consists of AmericanOption objects and second half consists of EuropeanOption objects having the same exercise specification
control_variate_pairs(callput, K, time)
Arguments
callput: 1 for calls, -1 for puts
K: strike
time: Time from 0 until expiration
See Also
Other American Exercise Equity Options: american_implied_volatility(), american()