<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div>x and x0 are mathematically equivalent in the definition of the function, they differ only by their signs.</div><div><br></div><div>Therefore, you should just keep using "x" as the default input and use x0 as the fitting parameter.</div><div><br></div><div>(but to still answer the question: the "x" parameter in pro Fit functions is wired a little bit differently for reasons of speed, and this is why it can't be made into a fittable parameter when the default input is another one. But this apparent limitation is not important because most functions depend on "(x-x0)")</div><div><br></div><div>pro Fit support<br><a href="mailto:profit@quansoft.com">profit@quansoft.com</a><br><br></div><div><br></div><div>On Feb 27, 2012, at 1:56 AM, riki wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite">Hi all,<br>
<br>
In power law fitting, I want to use "x0" parameter as the Default input which we can do in Parameters panel. But if I want to <br>
use "x" parameter for fitting, we could not because Use for fitting button is diabled for "x". How can we get rid of this <br>
problem?<br>
<br>
Kind Regards,<br>
Riki<br><table border="0" width="100%" height="57" cellspacing="0" cellpadding="0" style="font-family:Verdana;font-size:11px;line-height:15px;"><tbody><tr><td><a href="http://sigads.rediff.com/RealMedia/ads/click_nx.ads/www.rediffmail.com/signatureline.htm@Middle?" target="_blank"><img src="http://sigads.rediff.com/RealMedia/ads/adstream_nx.ads/www.rediffmail.com/signatureline.htm@Middle"></a></td></tr></tbody></table><table width="578" border="0" cellspacing="0" cellpadding="0"><tbody><tr><td><span style="font-family:Arial, Helvetica, sans-serif; font-size:12px; color:#393939;">Follow <span style="color:#0000CC;"><b><u><a href="http://track.rediff.com/click?url=___http://dealhojaye.rediff.com?sc_cid=rediffmailsignature___&cmp=signature&lnk=rediffmailsignature&newservice=deals" target="_blank">Rediff Deal ho jaye!</a></u></b></span> to get exciting offers in your city everyday.</span></td></tr></tbody></table>_______________________________________________<br>proFit-list mailing list<br><a href="mailto:proFit-list@quantum-soft.com">proFit-list@quantum-soft.com</a><br>http://quantum-soft.com/mailman/listinfo/profit-list_quantum-soft.com<br></blockquote></div><br><div><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><br><br></span>
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