Bug fix when shifting model base point, upgrade to v1.0.1

dfogn/dfogn.py

@@ -723,8 +723,9 @@ def dfogn_main(objfun, x0, xl, xu, rhobeg, rhoend, maxfun):
 
             # Severe cancellation is likely to occur if XOPT is too far from XBASE. [Fortran label 90]
             if dsq <= rounding_error_const * sumsq(model.xopt()):
-                model.shift_base(model.xopt())  # includes a re-factorisation of the interpolation matrix
-                xnew = xnew - model.xopt()
+                base_shift = model.xopt()
+                xnew = xnew - base_shift  # before xopt is updated
+                model.shift_base(base_shift)  # includes a re-factorisation of the interpolation matrix
 
             # Set KNEW to the index of the next interpolation point to be deleted to make room for a trust
             # region step. Again RESCUE may be called if rounding errors have damaged

dfogn/tests/test_dfogn.py

@@ -49,7 +49,7 @@ def runTest(self):
         soln = dfogn.solve(rosenbrock, x0)
         self.assertTrue(array_compare(soln.x, np.array([1.0, 1.0]), thresh=1e-4), "Wrong xmin")
         self.assertTrue(array_compare(soln.resid, rosenbrock(soln.x), thresh=1e-10), "Wrong resid")
-        self.assertTrue(array_compare(soln.jacobian, rosenbrock_jacobian(soln.x), thresh=1e-2), "Wrong Jacobian")
+        self.assertTrue(array_compare(soln.jacobian, rosenbrock_jacobian(soln.x), thresh=2e-2), "Wrong Jacobian")
         self.assertTrue(abs(soln.f) < 1e-10, "Wrong fmin")
 
 

dfogn/version.py

@@ -24,4 +24,4 @@
 
 """
 
-__version__ = '1.0'
+__version__ = '1.0.1'

docs/build/html/.buildinfo

@@ -1,4 +1,4 @@
 # Sphinx build info version 1
 # This file hashes the configuration used when building these files. When it is not found, a full rebuild will be done.
-config: 323aea43a5449895fd1471c6a55fc908
+config: d2939da9da2b6169649cc2ef47c7f549
 tags: 645f666f9bcd5a90fca523b33c5a78b7

docs/build/html/_sources/history.rst.txt

@@ -14,3 +14,7 @@ Version 1.0 (17 Jul 2018)
 -------------------------
 * Bug fix for installation when dependencies not installed, added requirements.txt - no changes to the DFO-GN algorithm.
 
+Version 1.0.1 (5 Mar 2019)
+--------------------------
+* Bug fix when changing base point in model.
+

docs/build/html/genindex.html

@@ -9,7 +9,7 @@
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
 
-  <title>Index &mdash; DFO-GN v1.0 documentation</title>
+  <title>Index &mdash; DFO-GN v1.0.1 documentation</title>
 
 
 
@@ -36,7 +36,7 @@
         <link rel="index" title="Index"
               href="#"/>
         <link rel="search" title="Search" href="search.html"/>
-    <link rel="top" title="DFO-GN v1.0 documentation" href="index.html"/> 
+    <link rel="top" title="DFO-GN v1.0.1 documentation" href="index.html"/> 
 
 
   <script src="_static/js/modernizr.min.js"></script>
@@ -65,7 +65,7 @@
 
 
               <div class="version">
-                1.0
+                1.0.1
               </div>
 
 
@@ -198,7 +198,7 @@ <h1 id="index">Index</h1>
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'1.0',
+            VERSION:'1.0.1',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
             HAS_SOURCE:  true,

docs/build/html/history.html

@@ -8,7 +8,7 @@
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
 
-  <title>Version History &mdash; DFO-GN v1.0 documentation</title>
+  <title>Version History &mdash; DFO-GN v1.0.1 documentation</title>
 
 
 
@@ -35,7 +35,7 @@
         <link rel="index" title="Index"
               href="genindex.html"/>
         <link rel="search" title="Search" href="search.html"/>
-    <link rel="top" title="DFO-GN v1.0 documentation" href="index.html"/>
+    <link rel="top" title="DFO-GN v1.0.1 documentation" href="index.html"/>
         <link rel="prev" title="Using DFO-GN" href="userguide.html"/> 
 
 
@@ -65,7 +65,7 @@
 
 
               <div class="version">
-                1.0
+                1.0.1
               </div>
 
 
@@ -98,6 +98,7 @@
 <li class="toctree-l2"><a class="reference internal" href="#version-0-1-13-sep-2017">Version 0.1 (13 Sep 2017)</a></li>
 <li class="toctree-l2"><a class="reference internal" href="#version-0-2-20-feb-2018">Version 0.2 (20 Feb 2018)</a></li>
 <li class="toctree-l2"><a class="reference internal" href="#version-1-0-17-jul-2018">Version 1.0 (17 Jul 2018)</a></li>
+<li class="toctree-l2"><a class="reference internal" href="#version-1-0-1-5-mar-2019">Version 1.0.1 (5 Mar 2019)</a></li>
 </ul>
 </li>
 </ul>
@@ -184,6 +185,12 @@ <h2>Version 1.0 (17 Jul 2018)<a class="headerlink" href="#version-1-0-17-jul-201
 <li>Bug fix for installation when dependencies not installed, added requirements.txt - no changes to the DFO-GN algorithm.</li>
 </ul>
 </div>
+<div class="section" id="version-1-0-1-5-mar-2019">
+<h2>Version 1.0.1 (5 Mar 2019)<a class="headerlink" href="#version-1-0-1-5-mar-2019" title="Permalink to this headline">¶</a></h2>
+<ul class="simple">
+<li>Bug fix when changing base point in model.</li>
+</ul>
+</div>
 </div>
 
 
@@ -228,7 +235,7 @@ <h2>Version 1.0 (17 Jul 2018)<a class="headerlink" href="#version-1-0-17-jul-201
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'1.0',
+            VERSION:'1.0.1',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
             HAS_SOURCE:  true,

docs/build/html/index.html

@@ -8,7 +8,7 @@
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
 
-  <title>DFO-GN: A Derivative-Free Gauss-Newton Solver &mdash; DFO-GN v1.0 documentation</title>
+  <title>DFO-GN: A Derivative-Free Gauss-Newton Solver &mdash; DFO-GN v1.0.1 documentation</title>
 
 
 
@@ -35,7 +35,7 @@
         <link rel="index" title="Index"
               href="genindex.html"/>
         <link rel="search" title="Search" href="search.html"/>
-    <link rel="top" title="DFO-GN v1.0 documentation" href="#"/>
+    <link rel="top" title="DFO-GN v1.0.1 documentation" href="#"/>
         <link rel="next" title="Overview" href="info.html"/> 
 
 
@@ -65,7 +65,7 @@
 
 
               <div class="version">
-                1.0
+                1.0.1
               </div>
 
 
@@ -160,8 +160,8 @@
 
   <div class="section" id="dfo-gn-a-derivative-free-gauss-newton-solver">
 <h1>DFO-GN: A Derivative-Free Gauss-Newton Solver<a class="headerlink" href="#dfo-gn-a-derivative-free-gauss-newton-solver" title="Permalink to this headline">¶</a></h1>
-<p><strong>Release:</strong> 1.0</p>
-<p><strong>Date:</strong> 10 August 2018</p>
+<p><strong>Release:</strong> 1.0.1</p>
+<p><strong>Date:</strong> 05 March 2019</p>
 <p><strong>Author:</strong> <a class="reference external" href="mailto:lindon&#46;roberts&#37;&#52;&#48;maths&#46;ox&#46;ac&#46;uk">Lindon Roberts</a> (Mathematical Institute, University of Oxford)</p>
 <p>DFO-GN is a Python package for finding local solutions to <strong>nonlinear least-squares minimization problems (with optional bound constraints)</strong>, without requiring any derivatives of the objective. DFO-GN stands for Derivative-Free Optimization using Gauss-Newton, and is applicable to problems such as</p>
 <ul class="simple">
@@ -212,6 +212,7 @@ <h1>DFO-GN: A Derivative-Free Gauss-Newton Solver<a class="headerlink" href="#df
 <li class="toctree-l2"><a class="reference internal" href="history.html#version-0-1-13-sep-2017">Version 0.1 (13 Sep 2017)</a></li>
 <li class="toctree-l2"><a class="reference internal" href="history.html#version-0-2-20-feb-2018">Version 0.2 (20 Feb 2018)</a></li>
 <li class="toctree-l2"><a class="reference internal" href="history.html#version-1-0-17-jul-2018">Version 1.0 (17 Jul 2018)</a></li>
+<li class="toctree-l2"><a class="reference internal" href="history.html#version-1-0-1-5-mar-2019">Version 1.0.1 (5 Mar 2019)</a></li>
 </ul>
 </li>
 </ul>
@@ -266,7 +267,7 @@ <h2>Acknowledgements<a class="headerlink" href="#acknowledgements" title="Permal
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'1.0',
+            VERSION:'1.0.1',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
             HAS_SOURCE:  true,

docs/build/html/info.html

@@ -8,7 +8,7 @@
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
 
-  <title>Overview &mdash; DFO-GN v1.0 documentation</title>
+  <title>Overview &mdash; DFO-GN v1.0.1 documentation</title>
 
 
 
@@ -35,7 +35,7 @@
         <link rel="index" title="Index"
               href="genindex.html"/>
         <link rel="search" title="Search" href="search.html"/>
-    <link rel="top" title="DFO-GN v1.0 documentation" href="index.html"/>
+    <link rel="top" title="DFO-GN v1.0.1 documentation" href="index.html"/>
         <link rel="next" title="Installing DFO-GN" href="install.html"/>
         <link rel="prev" title="DFO-GN: A Derivative-Free Gauss-Newton Solver" href="index.html"/> 
 
@@ -66,7 +66,7 @@
 
 
               <div class="version">
-                1.0
+                1.0.1
               </div>
 
 
@@ -276,7 +276,7 @@ <h2>References<a class="headerlink" href="#references" title="Permalink to this
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'1.0',
+            VERSION:'1.0.1',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
             HAS_SOURCE:  true,

docs/build/html/install.html

@@ -8,7 +8,7 @@
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
 
-  <title>Installing DFO-GN &mdash; DFO-GN v1.0 documentation</title>
+  <title>Installing DFO-GN &mdash; DFO-GN v1.0.1 documentation</title>
 
 
 
@@ -35,7 +35,7 @@
         <link rel="index" title="Index"
               href="genindex.html"/>
         <link rel="search" title="Search" href="search.html"/>
-    <link rel="top" title="DFO-GN v1.0 documentation" href="index.html"/>
+    <link rel="top" title="DFO-GN v1.0.1 documentation" href="index.html"/>
         <link rel="next" title="Using DFO-GN" href="userguide.html"/>
         <link rel="prev" title="Overview" href="info.html"/> 
 
@@ -66,7 +66,7 @@
 
 
               <div class="version">
-                1.0
+                1.0.1
               </div>
 
 
@@ -299,7 +299,7 @@ <h2>Uninstallation<a class="headerlink" href="#uninstallation" title="Permalink
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'1.0',
+            VERSION:'1.0.1',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
             HAS_SOURCE:  true,

docs/build/html/search.html

@@ -8,7 +8,7 @@
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
 
-  <title>Search &mdash; DFO-GN v1.0 documentation</title>
+  <title>Search &mdash; DFO-GN v1.0.1 documentation</title>
 
 
 
@@ -35,7 +35,7 @@
         <link rel="index" title="Index"
               href="genindex.html"/>
         <link rel="search" title="Search" href="#"/>
-    <link rel="top" title="DFO-GN v1.0 documentation" href="index.html"/> 
+    <link rel="top" title="DFO-GN v1.0.1 documentation" href="index.html"/> 
 
 
   <script src="_static/js/modernizr.min.js"></script>
@@ -64,7 +64,7 @@
 
 
               <div class="version">
-                1.0
+                1.0.1
               </div>
 
 
@@ -201,7 +201,7 @@
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'1.0',
+            VERSION:'1.0.1',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
             HAS_SOURCE:  true,