- users - SasView Mailing Lists

[Sasview-users] SasView 3.1.2 - please upgrade
by unknown＠example.com 09 Dec '15

09 Dec '15

A new update of SasView, version 3.1.2, has just been released. It is recommended that all users of SasView upgrade. http://www.sasview.org/ The SasView Development Team New in Version 3.1.2 This release is a major stability improvement, having fixed a serious bug that came to light since release 3.1.1. All users should upgrade. Fixes bug #468 broken remove constraint buttons in simultaneous/constrained fitting panel Fixes bug #474 resulting from changes in 3.1.1 that had introduced an error in the high-Q of slit-smeared models. Fixes bug #478 which would cause wx to run out of IDs and result in SasView crashing even if left alone. Fixes bug #479 missing help button on simultaneous/constrained fit page Fixes bug #480 GUI resizing issues on simultaneous fit page Fixes bug #486 broken Report Results Fixes bug #488 redraw issues in fit page New in Version 3.1.1 Fixes bug #457 that prevented SasView from starting if the user was not connected to the internet, or was behind a proxy server.

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[Sasview-users] CoreShellBicelle Model help
by Niki BACCILE 01 Dec '15

01 Dec '15

Dear Users Can anyone provide some help on the CoreShellBicelle Model (1D version) developed in SasView and referring to the documentation below? http://www.sasview.org/docs/user/models/model_functions.html#coreshellbicel… The following is not clear to me: 1) It is said that that the CoreShellBicelle Model is developed on the basis of the CoreShell Cylinder. I suppose that what it means is that if one squeezes a cylinder in its length (Radius>>Length), one obtains a bicelle morphology from a cylinder. However, in the Bicelle standard parameters, it is the contrary, Length (400)>>Radius(20). Is this normal? 2) In the CoreShellCylinder model, the Shell surrounds the Core in the axial direction, parallel to the length of the cylinder, as shown in http://www.sasview.org/docs/user/models/model_functions.html#coreshellcylin… Now, if I "squeeze" the cylinder in its length to make it a bicelle, I suppose that the shell will then correspond to the Rim Thickness of the bicelle. Is this correct? Or I did not figure this out at all in the rigth way and the Shell of the cylinder actually corresponds to the Face Thickness? Thank you very much for your help. Niki ---------------------------------------------------------------- This message was sent using IMP, the Internet Messaging Program.

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[Sasview-users] SasView and Molecular Dynamics?
by Sadegh Faramarzi Ganjabad 18 Nov '15

18 Nov '15

Hello I was wondering whether I can use SasView to generate SAXS profile from structures I get from molecular dynamics. For example, if I have pdb file or pair distance distribution file, can I use it to generate a SAXS profile theoretically? Thanks

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[Sasview-users] sasview tutorial not found
by Wojciech Potrzebowski 25 Oct '15

25 Oct '15

Dear Sasview Administrator, I have tried to download sasview tutorial from the official webpage: http://www.sasview.org/links.html but the following link cannot be found: http://danse.chem.utk.edu/downloads/sasview_tutorial.pdf However, I found http://danse.chem.utk.edu/downloads/sansview_tutorial.pdf from 2012. Is it the current version of tutorial? With kind regards, Wojciech

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[Sasview-users] my problem with SLD
by Aldona Rajewska 29 Aug '15

29 Aug '15

29 August 2015 Dear Sir (Madam), please help me- I have problem with understanding SLD calculator tool ( SasView 3.1.0 ). >From help for SLD calculator I have information that: I have such mixtures of two surfactants in D2O ( SANS experiment): 1:1 [0.022mol/l (TX-100)+ 0.022mol/l (CTAB) in D2O2:1 [0.044mol/l (TX-100)+ 0.022mol/l (CTAB) in D2O3:1 [0.066mol/l (TX-100)+ 0.022mol/l (CTAB) in D2O 1:1 [1.294%(TX-100)+0.7289%(CTAB)]=2%2:1 [2.588%(TX-100)+0.7289%(CTAB)]=3.4% 3:1 [3.882%(TX-100)+0.7289%(CTAB)]=4.6% CTAB = C19H42BrN with molar mass=364.45g/mol ; density=1.1g/cm3 TX-100=C14H22O(C2H4O)n n=9 ; molar mass=647g/mol ;density=1.07g/cm3 Please help me if it possible and write correct - as example for one from these systems - SLD for calculator in SasView program. And the next question - when and how I must add this result ( these results for all my next files) during fitting my files. Aldona Rajewska email: zaldona24@...10...

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[Sasview-users] Now released: SasView v3.1.0
by unknown＠example.com 14 Jul '15

14 Jul '15

We are pleased to announce the release of version 3.1.0 of the popular SAS data analysis package SasView. Download from http://www.sasview.org/ Package installers are provided for Windows 32-bit and Mac OSX operating systems. Source code is provided for those who wish to build SasView on Unix/Linux operating systems. New in Version 3.1.0 * The documentation/help has had a complete overhaul including: * A completely new presentation interface (Sphinx). * Proof reading! * Updating for latest features. * A Help (or sometimes ?) button has been added to every panel, and some sub panels if appropriate, linking to the appropriate section in the documentation. * The model help has been split so that the Details button now brings up a very short pop-up giving the equation being used while HELP goes to the section in the full documentation describing the model. * Extensive help has also been added for the new optimizer engine (see below) including rules of thumb on how and when to choose a given optimizer and what the parameters do. * The optimizer engine has been completely replaced. The new optimizer still defaults to the standard Levenberg-Marquardt algorithm. However 4 other optimizers are now also available. Each starts with a set of default parameters which can be tuned. The DREAM optimizer takes the longest but is the most powerful and yields rich information including full parameter correlation and uncertainty plots. A results panel has been added to accommodate this. * The five new optimizers are: * A Levenberg-Marquardt optimizer * A Quasi-Newton BFGS optimizer * A Nelder-Mead Simplex optimizer * A Differential Evolution optimizer * A Monte Carlo optimizer (DREAM) * New models were added: * MicelleSphCoreModel (currently residing in the Uncategorized category) * Existing models were updated: * LamellarPS (bug in polydispersity integration fixed) * RectangularPrismModel * RectangularHollowPrismModel * RectangularHollowPrismInfThinWallsModel * A number of bugs were fixed including a thread crashing issue and an incorrect slit smearing resolution calculation. * Implemented much more robust error logging to enable much easier debugging in general but particularly the debugging of issues reported by SasView users. For further details and known issues, please see the release notes. We hope you like it! The SasView Development Team

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[Sasview-users] Request for help
by rahul bhambure 14 May '15

14 May '15

Hi, I am a Postdoctoral researcher at University of Delaware USA. I am trying to use the Pearl and necklace model from the Sasview. I am unable to use the this model. When trying to fit my data using this model goodness of fit is always showing the error (Nan). (Fit also did not converge for any value of parameters) Can you please suggest what may be the problem? Thanking you, Regards, Rahul B

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[Sasview-users] apply pinhole smear to scattering curve from 3d Model
by Martin Dulle 20 Mar '15

20 Mar '15

Hello Everybody, I made program to calculate the small angle scattering of an arbritrary shaped object made up by dummy "atoms" this works fine. But in order to compare it to the experimental data in the best way I want to smear the model data with the same routine that is used in SASview (custom pinhole smear) as this has worked with other data sets and analytical models very well. But I do not understand the help description good enough to implement this into a program of my own. Maybe someone knows an already existing program that can do such a thing or help me understand it so that I can implement it on my own. Thanks in advance -- Dr. Martin Dulle Physikalische Chemie I Universitätsstrasse 30 95444 Bayreuth Email: martin.dulle@...5... Mobile: +491781301187 Office: +49921/55-3922

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[Sasview-users] This is a test of the new users@...2... address
by Paul Butler 25 Jan '15

25 Jan '15

I have added "users@...2..." as a valid address to emil to user forum. Paul Butler

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