<div>Hi</div>
<div>     I am fitting a copper foil whose data is taken at room temperature. So do I need to change the guess value of parameters enot, ss,amp, delr to some other value or I should take them as the default guess value. Also what should be the ideal fitting range in R for the copper foil.</div>

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<div>                                                                                                                    With thanks</div>
<div>                                                                                                                     Abhijeet</div>