>I mean, Leonid refuse to see any reliability limit to > the powder results. Absurdity does not exist at all > for him (with the exception of mine apparently). >The difference between us is that I am happy with > 1.634(2) but already think that soft restraints are > clearly needed when I have 1.72(3). This is all my crime...
Absurdity or credibility of results depends on the research purpose. For some purposes 1.72(3) may be OK if (3) is realistic, for other purposes even 1.634(2) will be absurd especially if (2) is artificial. If you have a magic for a universal assessment of absurdity then this is one more "Know How" and I may only humbly unbonnet. I think that Alan is right in that we should stop this thread since we reach such high matters as absurdity and crime. ******************************************************* Leonid A. Solovyov Institute of Chemistry and Chemical Technology 660049, K. Marx 42, Krasnoyarsk, Russia http://sites.google.com/site/solovyovleonid ******************************************************* ________________________________ From: Armel Le Bail <x...@noos.fr> To: s...@yahoogroups.com Cc: rietveld_l@ill.fr Sent: Friday, August 2, 2013 2:37 PM Subject: Re: [sdpd] Re: Are restraints as good as observations ? > All deviations from expected values (1.514 and 1.634) are within 3 e.s.u.s > that are around 0.03 A in average. About absurdity, there are different sensibilities... With such a definition above, 1.72(3) instead of 1.634 is just OK for Leonid. Where would he see a limit before applying restraints ? Never, since he will find also that 1.9(1) is quite excellent, or even 2.2(3) : all deviations are within 3 e.s.u.s. I mean, Leonid refuse to see any reliability limit to the powder results. Absurdity does not exist at all for him (with the exception of mine apparently). The difference between us is that I am happy with 1.634(2) but already think that soft restraints are clearly needed when I have 1.72(3). This is all my crime... Best, Armel
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Please do NOT attach files to the whole list <alan.he...@neutronoptics.com> Send commands to <lists...@ill.fr> eg: HELP as the subject with no body text The Rietveld_L list archive is on http://www.mail-archive.com/rietveld_l@ill.fr/ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++