[R] A question about nlminb function

[Zixuan Qi]

Hi,

I use the function nlminb to maximize a function and got convergence with the message false-convergence. I know the reason may be the gradient $B"`(Bf(x) may be computed incorrectly, the other stopping tolerances may be too tight, or either f or $B"`(Bf may be discontinuous near the current iterate x.

However, I want to know how to modify the program after this problem occurs.

Thanks very much.

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