[SciPy-user] scipy.optimise.lbfgsb /bounded optimization help

[Robert Kern]

mclaugb wrote:
> If passed as a tuple, the error of my previous post occurs.
> 
> "Value Error:  Setting an array element with a sequence"  The line of code 
> tries to add a tuple to ndarrays. 

No, it doesn't. It adds a tuple to a tuple.

  (xk+ei,)+args

(xk+ei,) is a tuple. args is a tuple.

> Should something be modified?

It appears that the RHS of that assignment is an array, not a scalar. Permmin()
must return a scalar. That is where the exception is coming from.

-- 
Robert Kern

"I have come to believe that the whole world is an enigma, a harmless enigma
 that is made terrible by our own mad attempt to interpret it as though it had
 an underlying truth."
  -- Umberto Eco