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fminseachの​途中で内部パラメータ​を変更したい I want to change an internal parameter during fminseach.

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fminseach関数を用いて最適化を行います。この最適化には精度を調整するパラメータがあり、その値を大きくすると解の探索範囲は広く解像度は悪くなります。その値を小さくすると解の探索範囲は狭く解像度は良くなります。
An optimization is performed using the fminseach function. This optimization has a parameter that adjusts the accuracy, and the larger the value, the wider the search range of the solution and the worse the resolution. When the value is decreased, the search range of the solution becomes narrower and the resolution becomes better.
私はこの精度パラメータを、反復回数が少ないうちは大きくしておき、解が収束しはじめたら徐々に小さく変化させたいのです。たとえば、最小化されるfunctionの内部で、反復回数を参照することは出来ますでしょうか?
I would like to keep this precision parameter large for a small number of iterations, and gradually decrease it when the solution starts to converge. For example, is it possible to refer to the number of iterations inside the function to be minimized?
ご回答は英語でも日本語でも結構です。宜しくお願い致します。
Answers can be in English/Japanese. Thank you very much for your time.

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