Changeset f9250dc in sasview for src/sas/perspectives

Timestamp:

Jun 8, 2015 6:36:57 AM (10 years ago)

Author:

smk78

Branches:

master, ESS_GUI, ESS_GUI_Docs, ESS_GUI_batch_fitting, ESS_GUI_bumps_abstraction, ESS_GUI_iss1116, ESS_GUI_iss879, ESS_GUI_iss959, ESS_GUI_opencl, ESS_GUI_ordering, ESS_GUI_sync_sascalc, costrafo411, magnetic_scatt, release-4.1.1, release-4.1.2, release-4.2.2, release_4.0.1, ticket-1009, ticket-1094-headless, ticket-1242-2d-resolution, ticket-1243, ticket-1249, ticket885, unittest-saveload

Children:

b404a3de

Parents:

db41746

Message:

Added bookmarks to new help on Chi2 & residuals.

File:

• src/sas/perspectives/fitting/media/fitting_help.rst (modified) (6 diffs)

src/sas/perspectives/fitting/media/fitting_help.rst

@@ -351 +351 @@
 window, and a second graph window will appear displaying the residuals (the
 difference between the experimental data and the theory) at the same X-data values.
+See :ref:`Assessing_Fit_Quality`.
 
 The objective of model-fitting is to find a *physically-plausible* model, and set
@@ -373 +374 @@
 fit of the theory to the experimental data improves the value of 'chi2/Npts' will
 decrease. A good model fit should easily produce values of 'chi2/Npts' that are
-close to zero, and certainly <100.
+close to one, and certainly <100. See :ref:`Assessing_Fit_Quality`.
 
 SasView has a number of different optimisers (see the section :ref:`Fitting_Options`).
@@ -397 +398 @@
 *Send To Fitting*. Either way, the result should be that for *n* data sets you have
 2\ *n* graphs (*n* of the data and model fit, and *n* of the resulting residuals). But
-it may be helpful to minimise the residuals plots for clarity.
+it may be helpful to minimise the residuals plots for clarity. Also see
+:ref:`Assessing_Fit_Quality`.
 
 *NB: If you need to use a customized model, you must ensure that model is available*
@@ -439 +441 @@
 Note that the chi2/Npts value returned is the SUM of the chi2/Npts of each fit. To
 see the chi2/Npts value for a specific *FitPage*, click the *Compute* button at the
-bottom of that *FitPage* to recalculate.
+bottom of that *FitPage* to recalculate. Also see :ref:`Assessing_Fit_Quality`.
 
 Simultaneous Fits with Constraints
@@ -465 +467 @@
 Note that the chi2/Npts value returned is the SUM of the chi2/Npts of each fit. To
 see the chi2/Npts value for a specific *FitPage*, click the *Compute* button at the
-bottom of that *FitPage* to recalculate.
+bottom of that *FitPage* to recalculate. Also see :ref:`Assessing_Fit_Quality`.
 
 .. ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ
@@ -525 +527 @@
 If you select a 'Chi2' value and click the *View Fits* button a graph of the
 residuals for that data set is displayed. Again, if you select multiple 'Chi2'
-values then all the residuals data will appear on one graph.
+values then all the residuals data will appear on one graph. Also see
+:ref:`Assessing_Fit_Quality`.
 
 Chain Fitting