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<p class="MsoNormal">We are pleased to announce the release of version 3.1.0 of the popular SAS data analysis package SasView.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Download from <span style="color:blue"><a href="http://www.sasview.org/"><span style="color:blue">http://www.sasview.org/</span></a><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">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.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="background:white"><span style="mso-fareast-language:EN-GB">New in Version 3.1.0<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<ul style="margin-top:0cm" type="disc">
<li class="MsoNormal" style="mso-list:l0 level1 lfo1;background:white"><span style="mso-fareast-language:EN-GB">The documentation/help has had a complete overhaul including:<o:p></o:p></span>
<ul style="margin-top:0cm" type="circle">
<li class="MsoNormal" style="mso-list:l0 level2 lfo1;background:white"><span style="mso-fareast-language:EN-GB">A completely new presentation interface (Sphinx).<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l0 level2 lfo1;background:white"><span style="mso-fareast-language:EN-GB">Proof reading!<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l0 level2 lfo1;background:white"><span style="mso-fareast-language:EN-GB">Updating for latest features.<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l0 level2 lfo1;background:white"><span style="mso-fareast-language:EN-GB">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.<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l0 level2 lfo1;background:white"><span style="mso-fareast-language:EN-GB">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.<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l0 level2 lfo1;background:white"><span style="mso-fareast-language:EN-GB">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.<o:p></o:p></span></li></ul>
</li></ul>
<p class="MsoNormal" style="margin-left:72.0pt;background:white"><span style="mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<ul style="margin-top:0cm" type="disc">
<li class="MsoNormal" style="mso-list:l0 level1 lfo1;background:white"><span style="mso-fareast-language:EN-GB">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.<o:p></o:p></span>
<ul style="margin-top:0cm" type="circle">
<li class="MsoNormal" style="mso-list:l0 level2 lfo1;background:white"><span style="mso-fareast-language:EN-GB">The five new optimizers are:<o:p></o:p></span>
<ul style="margin-top:0cm" type="square">
<li class="MsoNormal" style="mso-list:l0 level3 lfo1;background:white"><span style="mso-fareast-language:EN-GB">A Levenberg-Marquardt optimizer<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l0 level3 lfo1;background:white"><span style="mso-fareast-language:EN-GB">A Quasi-Newton BFGS optimizer<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l0 level3 lfo1;background:white"><span style="mso-fareast-language:EN-GB">A Nelder-Mead Simplex optimizer<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l0 level3 lfo1;background:white"><span style="mso-fareast-language:EN-GB">A Differential Evolution optimizer<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l0 level3 lfo1;background:white"><span style="mso-fareast-language:EN-GB">A Monte Carlo optimizer (DREAM)<o:p></o:p></span></li></ul>
</li></ul>
</li></ul>
<p class="MsoNormal" style="margin-left:108.0pt;background:white"><span style="mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<ul style="margin-top:0cm" type="disc">
<li class="MsoNormal" style="mso-list:l0 level1 lfo1;background:white"><span style="mso-fareast-language:EN-GB">New models were added:<o:p></o:p></span>
<ul style="margin-top:0cm" type="circle">
<li class="MsoNormal" style="mso-list:l0 level2 lfo1;background:white"><span style="mso-fareast-language:EN-GB">MicelleSphCoreModel (currently residing in the Uncategorized category)<o:p></o:p></span></li></ul>
</li></ul>
<p class="MsoNormal" style="margin-left:72.0pt;background:white"><span style="mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<ul style="margin-top:0cm" type="disc">
<li class="MsoNormal" style="mso-list:l0 level1 lfo1;background:white"><span style="mso-fareast-language:EN-GB">Existing models were updated:<o:p></o:p></span>
<ul style="margin-top:0cm" type="circle">
<li class="MsoNormal" style="mso-list:l0 level2 lfo1;background:white"><span style="mso-fareast-language:EN-GB">LamellarPS (bug in polydispersity integration fixed)<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l0 level2 lfo1;background:white"><span style="mso-fareast-language:EN-GB">RectangularPrismModel<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l0 level2 lfo1;background:white"><span style="mso-fareast-language:EN-GB">RectangularHollowPrismModel<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l0 level2 lfo1;background:white"><span style="mso-fareast-language:EN-GB">RectangularHollowPrismInfThinWallsModel<o:p></o:p></span></li></ul>
</li></ul>
<p class="MsoNormal" style="margin-left:72.0pt;background:white"><span style="mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<ul style="margin-top:0cm" type="disc">
<li class="MsoNormal" style="mso-list:l0 level1 lfo1;background:white"><span style="mso-fareast-language:EN-GB">A number of bugs were fixed including a thread crashing issue and an incorrect slit smearing resolution calculation.<o:p></o:p></span></li></ul>
<p class="MsoNormal" style="margin-left:36.0pt;background:white"><span style="mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<ul style="margin-top:0cm" type="disc">
<li class="MsoNormal" style="mso-list:l0 level1 lfo1;background:white"><span style="mso-fareast-language:EN-GB">Implemented much more robust error logging to enable much easier debugging in general but particularly the debugging of issues reported by SasView
users.<o:p></o:p></span></li></ul>
<p class="MsoNormal" style="margin-left:36.0pt;background:white"><span style="mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="mso-fareast-language:EN-GB">For further details and known issues, please see the release notes.<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="mso-fareast-language:EN-GB">We hope you like it!<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="mso-fareast-language:EN-GB">The SasView Development Team<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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