Which optimization algorithm does scipy.optimize.leastsq use?

StackOverflow https://stackoverflow.com/questions/8622145

Question

Does anyone know which optimization algorithm specifically is implemented in scipy.optimize.leastsq?

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Solution

According to the documentation:

“leastsq” is a wrapper around MINPACK’s lmdif and lmder algorithms.

So (as @tillsten points out) that’s a Levenberg–Marquardt implementation.

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