Changeset fa307dd in sasview
 Timestamp:
 Mar 31, 2019 7:13:29 AM (7 months ago)
 Branches:
 master
 Children:
 b2964ef, d620d03c, c080c943
 Parents:
 6d7b252b
 Location:
 src/sas/sasgui/perspectives/fitting/media
 Files:

 3 added
 1 edited
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src/sas/sasgui/perspectives/fitting/media/fitting_help.rst
r6d7b252b rfa307dd 64 64 ^^^^^^^^^^^^^^ 65 65 66 S(Q) models can be combined with many models in the other categories to 67 generate what SasView calls "product models". The combination can be done by 68 one of two methods, but how they behave is slightly different. 69 70 The first, most straightforward, method is simply to use the S(Q) dropdown in 71 the FitPage: 72 66 73 .. figure:: p_and_s_buttons.png 67 74 68 S(Q) models can be combined with models in the other categories to generate 69 what SasView calls "product models". See :ref:`Product_Models` for more 70 information. 75 This example would then generate a product model with the following parameters: 76 77 .. figure:: p_and_s_buttons_parameters.png 78 79 The other method is to use the :ref:`SumMulti(p1,p2)` tool under Fitting > 80 Plugin Model Operations: 81 82 .. figure:: p_and_s_sum_model.png 83 84 This creates a product model with the following parameters: 85 86 .. figure:: p_and_s_sum_model_parameters.png 87 88 As can be seen, the second method has produced a product model with an extra 89 parameter: *radius_effective*. This is the radial distance determining the 90 range of the $S(Q)$ interaction and may, or may not, be the same as the 91 *radius*, in this example, depending on the concentration of the system. In 92 other systems, *radius_effective* may depend on the particle form (shape). 93 94 See :ref:`Product_Models` for more information. 71 95 72 96 Show 1D/2D … … 225 249 Such a plugin should then be available in the S(Q) dropdown box on a FitPage (once 226 250 a P(Q) model has been selected). 251 252 .. _SumMulti(p1,p2): 227 253 228 254 SumMulti(p1,p2)
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