From butlerpd at udel.edu Tue Apr 17 10:36:40 2018 From: butlerpd at udel.edu (Paul Butler) Date: Tue, 17 Apr 2018 10:36:40 -0400 Subject: [SasView Users] SASView - polyspersity, mean. median In-Reply-To: References: Message-ID: HI Jaroslav and thank you for your email. Regarding your question, yes SasView reports everything in terms of number distribution (or at least it is supposed to -- let us know if there is an error). Of course scattering weights things differently but that is handled by SasView for you because most of us think more easily in terms of the number distribution. As for the log normal distribution it is supposed to be returning the x_med not the x_peak as I understand it. Hope this helps Paul On Tue, Apr 17, 2018 at 9:39 AM, Jaroslav Kousal wrote: Dear Sir/Madam, I using now SASView package to analyse SAXS data, thank you for this valueable piece of software. However, I am not fully sure, which parameter of the lognormal distribution ( http://www.sasview.org/docs/user/sasgui/perspectives/fitting/pd_help.html ) is used in the sphere model ( http://www.sasview.org/docs/user/models/sphere.html ) as "radius". Is it the x_mean, x_med or x_peak? The FAQ seems to suggests that "radius" is the "x_mean" and that the distribution itself is a number distribution. Is this correct? Best regards Jaroslav Kousal -- ----------------------------- Mgr. Jaroslav Kousal, Ph.D. Charles University Faculty of Mathematics and Physics Department of Macromolecular Physics e-mail: jaroslav.kousal at mff.cuni.cz tel: +420 95155 2256 _______________________________________________ users mailing list users at lists.sasview.org http://lists.sasview.org/cgi-bin/mailman/listinfo/users -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: ATT00001.txt URL: From jarda at kmf.troja.mff.cuni.cz Tue Apr 17 09:39:35 2018 From: jarda at kmf.troja.mff.cuni.cz (Jaroslav Kousal) Date: Tue, 17 Apr 2018 15:39:35 +0200 Subject: [SasView Users] SASView - polyspersity, mean. median Message-ID: Dear Sir/Madam, I using now SASView package to analyse SAXS data, thank you for this valueable piece of software. However, I am not fully sure, which parameter of the lognormal distribution ( http://www.sasview.org/docs/user/sasgui/perspectives/fitting/pd_help.html ) is used in the sphere model ( http://www.sasview.org/docs/user/models/sphere.html ) as "radius". Is it the x_mean, x_med or x_peak? The FAQ seems to suggests that "radius" is the "x_mean" and that the distribution itself is a number distribution. Is this correct? Best regards    Jaroslav Kousal -- ----------------------------- Mgr. Jaroslav Kousal, Ph.D. Charles University Faculty of Mathematics and Physics Department of Macromolecular Physics e-mail: jaroslav.kousal at mff.cuni.cz tel: +420 95155 2256 _______________________________________________ users mailing list users at lists.sasview.org http://lists.sasview.org/cgi-bin/mailman/listinfo/users