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56  <div class="section" id="fractalabsmodel">
57<h1>FractalAbsModel<a class="headerlink" href="#fractalabsmodel" title="Permalink to this headline">¶</a></h1>
58<div class="section" id="module-sans.models.FractalAbsModel">
59<span id="sans-models-fractalabsmodel"></span><h2><a class="reference internal" href="#module-sans.models.FractalAbsModel" title="sans.models.FractalAbsModel"><tt class="xref py py-mod docutils literal"><span class="pre">sans.models.FractalAbsModel</span></tt></a><a class="headerlink" href="#module-sans.models.FractalAbsModel" title="Permalink to this headline">¶</a></h2>
60<p>Provide F(x)= P(<a href="#id1"><span class="problematic" id="id2">|x|</span></a>)*S(<a href="#id3"><span class="problematic" id="id4">|x|</span></a>) + bkd
61Fractal as a BaseComponent model</p>
62<dl class="class">
63<dt id="sans.models.FractalAbsModel.FractalAbsModel">
64<em class="property">class </em><tt class="descclassname">sans.models.FractalAbsModel.</tt><tt class="descname">FractalAbsModel</tt><a class="headerlink" href="#sans.models.FractalAbsModel.FractalAbsModel" title="Permalink to this definition">¶</a></dt>
65<dd><p>Bases: <a class="reference internal" href="FractalModel.html#sans.models.FractalModel.FractalModel" title="sans.models.FractalModel.FractalModel"><tt class="xref py py-class docutils literal"><span class="pre">sans.models.FractalModel.FractalModel</span></tt></a></p>
66<p>Class that evaluates a Fractal function.</p>
67<p>F(<a href="#id5"><span class="problematic" id="id6">|x|</span></a>)= P(<a href="#id7"><span class="problematic" id="id8">|x|</span></a>)*S(<a href="#id9"><span class="problematic" id="id10">|x|</span></a>) + bkd
68The model has Seven parameters:</p>
69<blockquote>
70<div>scale        =  Volume fraction
71radius       =  Block radius
72fractal_dim  =  Fractal dimension
73corr_length  =  correlation Length
74block_sld    =  SDL block
75solvent_sld  =  SDL solvent
76background   =  background</div></blockquote>
77<dl class="method">
78<dt id="sans.models.FractalAbsModel.FractalAbsModel.calculate_ER">
79<tt class="descname">calculate_ER</tt><big>(</big><big>)</big><a class="headerlink" href="#sans.models.FractalAbsModel.FractalAbsModel.calculate_ER" title="Permalink to this definition">¶</a></dt>
80<dd><p>Calculate the effective radius for P(q)*S(q)</p>
81<table class="docutils field-list" frame="void" rules="none">
82<col class="field-name" />
83<col class="field-body" />
84<tbody valign="top">
85<tr class="field"><th class="field-name">Returns:</th><td class="field-body">the value of the effective radius</td>
86</tr>
87</tbody>
88</table>
89</dd></dl>
90
91<dl class="method">
92<dt id="sans.models.FractalAbsModel.FractalAbsModel.clone">
93<tt class="descname">clone</tt><big>(</big><big>)</big><a class="headerlink" href="#sans.models.FractalAbsModel.FractalAbsModel.clone" title="Permalink to this definition">¶</a></dt>
94<dd><p>Return a identical copy of self</p>
95</dd></dl>
96
97<dl class="attribute">
98<dt id="sans.models.FractalAbsModel.FractalAbsModel.dispersion">
99<tt class="descname">dispersion</tt><a class="headerlink" href="#sans.models.FractalAbsModel.FractalAbsModel.dispersion" title="Permalink to this definition">¶</a></dt>
100<dd><p>Dispersion parameters</p>
101</dd></dl>
102
103<dl class="method">
104<dt id="sans.models.FractalAbsModel.FractalAbsModel.evalDistribution">
105<tt class="descname">evalDistribution</tt><big>(</big><em>x=</em><span class="optional">[</span><span class="optional">]</span><big>)</big><a class="headerlink" href="#sans.models.FractalAbsModel.FractalAbsModel.evalDistribution" title="Permalink to this definition">¶</a></dt>
106<dd><p>Evaluate the model in cartesian coordinates</p>
107<table class="docutils field-list" frame="void" rules="none">
108<col class="field-name" />
109<col class="field-body" />
110<tbody valign="top">
111<tr class="field"><th class="field-name">Parameters:</th><td class="field-body"><strong>x</strong> &#8211; input q[], or [qx[], qy[]]</td>
112</tr>
113<tr class="field"><th class="field-name">Returns:</th><td class="field-body">scattering function P(q[])</td>
114</tr>
115</tbody>
116</table>
117</dd></dl>
118
119<dl class="method">
120<dt id="sans.models.FractalAbsModel.FractalAbsModel.getDispParamList">
121<tt class="descname">getDispParamList</tt><big>(</big><big>)</big><a class="headerlink" href="#sans.models.FractalAbsModel.FractalAbsModel.getDispParamList" title="Permalink to this definition">¶</a></dt>
122<dd><p>Return a list of all available parameters for the model</p>
123</dd></dl>
124
125<dl class="method">
126<dt id="sans.models.FractalAbsModel.FractalAbsModel.getParam">
127<tt class="descname">getParam</tt><big>(</big><em>name</em><big>)</big><a class="headerlink" href="#sans.models.FractalAbsModel.FractalAbsModel.getParam" title="Permalink to this definition">¶</a></dt>
128<dd><p>Set the value of a model parameter</p>
129<table class="docutils field-list" frame="void" rules="none">
130<col class="field-name" />
131<col class="field-body" />
132<tbody valign="top">
133<tr class="field"><th class="field-name">Parameters:</th><td class="field-body"><strong>name</strong> &#8211; name of the parameter</td>
134</tr>
135</tbody>
136</table>
137</dd></dl>
138
139<dl class="method">
140<dt id="sans.models.FractalAbsModel.FractalAbsModel.getParamList">
141<tt class="descname">getParamList</tt><big>(</big><big>)</big><a class="headerlink" href="#sans.models.FractalAbsModel.FractalAbsModel.getParamList" title="Permalink to this definition">¶</a></dt>
142<dd><p>Return a list of all available parameters for the model</p>
143</dd></dl>
144
145<dl class="method">
146<dt id="sans.models.FractalAbsModel.FractalAbsModel.getParamListWithToken">
147<tt class="descname">getParamListWithToken</tt><big>(</big><em>token</em>, <em>member</em><big>)</big><a class="headerlink" href="#sans.models.FractalAbsModel.FractalAbsModel.getParamListWithToken" title="Permalink to this definition">¶</a></dt>
148<dd></dd></dl>
149
150<dl class="method">
151<dt id="sans.models.FractalAbsModel.FractalAbsModel.getParamWithToken">
152<tt class="descname">getParamWithToken</tt><big>(</big><em>name</em>, <em>token</em>, <em>member</em><big>)</big><a class="headerlink" href="#sans.models.FractalAbsModel.FractalAbsModel.getParamWithToken" title="Permalink to this definition">¶</a></dt>
153<dd></dd></dl>
154
155<dl class="method">
156<dt id="sans.models.FractalAbsModel.FractalAbsModel.is_fittable">
157<tt class="descname">is_fittable</tt><big>(</big><em>par_name</em><big>)</big><a class="headerlink" href="#sans.models.FractalAbsModel.FractalAbsModel.is_fittable" title="Permalink to this definition">¶</a></dt>
158<dd><p>Check if a given parameter is fittable or not</p>
159<table class="docutils field-list" frame="void" rules="none">
160<col class="field-name" />
161<col class="field-body" />
162<tbody valign="top">
163<tr class="field"><th class="field-name">Parameters:</th><td class="field-body"><strong>par_name</strong> &#8211; the parameter name to check</td>
164</tr>
165</tbody>
166</table>
167</dd></dl>
168
169<dl class="attribute">
170<dt id="sans.models.FractalAbsModel.FractalAbsModel.log">
171<tt class="descname">log</tt><a class="headerlink" href="#sans.models.FractalAbsModel.FractalAbsModel.log" title="Permalink to this definition">¶</a></dt>
172<dd><p>Log</p>
173</dd></dl>
174
175<dl class="attribute">
176<dt id="sans.models.FractalAbsModel.FractalAbsModel.params">
177<tt class="descname">params</tt><a class="headerlink" href="#sans.models.FractalAbsModel.FractalAbsModel.params" title="Permalink to this definition">¶</a></dt>
178<dd><p>Parameters</p>
179</dd></dl>
180
181<dl class="attribute">
182<dt id="sans.models.FractalAbsModel.FractalAbsModel.reset">
183<tt class="descname">reset</tt><a class="headerlink" href="#sans.models.FractalAbsModel.FractalAbsModel.reset" title="Permalink to this definition">¶</a></dt>
184<dd><p>Reset pair correlation</p>
185</dd></dl>
186
187<dl class="method">
188<dt id="sans.models.FractalAbsModel.FractalAbsModel.run">
189<tt class="descname">run</tt><big>(</big><em>x=0.0</em><big>)</big><a class="headerlink" href="#sans.models.FractalAbsModel.FractalAbsModel.run" title="Permalink to this definition">¶</a></dt>
190<dd><p>Evaluate the model</p>
191<table class="docutils field-list" frame="void" rules="none">
192<col class="field-name" />
193<col class="field-body" />
194<tbody valign="top">
195<tr class="field"><th class="field-name">Parameters:</th><td class="field-body"><strong>x</strong> &#8211; input q, or [q,phi]</td>
196</tr>
197<tr class="field"><th class="field-name">Returns:</th><td class="field-body">scattering function P(q)</td>
198</tr>
199</tbody>
200</table>
201</dd></dl>
202
203<dl class="method">
204<dt id="sans.models.FractalAbsModel.FractalAbsModel.runXY">
205<tt class="descname">runXY</tt><big>(</big><em>x=0.0</em><big>)</big><a class="headerlink" href="#sans.models.FractalAbsModel.FractalAbsModel.runXY" title="Permalink to this definition">¶</a></dt>
206<dd><p>Evaluate the model in cartesian coordinates</p>
207<table class="docutils field-list" frame="void" rules="none">
208<col class="field-name" />
209<col class="field-body" />
210<tbody valign="top">
211<tr class="field"><th class="field-name">Parameters:</th><td class="field-body"><strong>x</strong> &#8211; input q, or [qx, qy]</td>
212</tr>
213<tr class="field"><th class="field-name">Returns:</th><td class="field-body">scattering function P(q)</td>
214</tr>
215</tbody>
216</table>
217</dd></dl>
218
219<dl class="method">
220<dt id="sans.models.FractalAbsModel.FractalAbsModel.setParam">
221<tt class="descname">setParam</tt><big>(</big><em>name</em>, <em>value</em><big>)</big><a class="headerlink" href="#sans.models.FractalAbsModel.FractalAbsModel.setParam" title="Permalink to this definition">¶</a></dt>
222<dd><p>Set the value of a model parameter</p>
223<table class="docutils field-list" frame="void" rules="none">
224<col class="field-name" />
225<col class="field-body" />
226<tbody valign="top">
227<tr class="field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first last simple">
228<li><strong>name</strong> &#8211; name of the parameter</li>
229<li><strong>value</strong> &#8211; value of the parameter</li>
230</ul>
231</td>
232</tr>
233</tbody>
234</table>
235</dd></dl>
236
237<dl class="method">
238<dt id="sans.models.FractalAbsModel.FractalAbsModel.setParamWithToken">
239<tt class="descname">setParamWithToken</tt><big>(</big><em>name</em>, <em>value</em>, <em>token</em>, <em>member</em><big>)</big><a class="headerlink" href="#sans.models.FractalAbsModel.FractalAbsModel.setParamWithToken" title="Permalink to this definition">¶</a></dt>
240<dd></dd></dl>
241
242<dl class="method">
243<dt id="sans.models.FractalAbsModel.FractalAbsModel.set_dispersion">
244<tt class="descname">set_dispersion</tt><big>(</big><em>parameter</em>, <em>dispersion</em><big>)</big><a class="headerlink" href="#sans.models.FractalAbsModel.FractalAbsModel.set_dispersion" title="Permalink to this definition">¶</a></dt>
245<dd><p>Set the dispersion object for a model parameter</p>
246<table class="docutils field-list" frame="void" rules="none">
247<col class="field-name" />
248<col class="field-body" />
249<tbody valign="top">
250<tr class="field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first last simple">
251<li><strong>parameter</strong> &#8211; name of the parameter [string]</li>
252<li><strong>dispersion</strong> &#8211; dispersion object of type DispersionModel</li>
253</ul>
254</td>
255</tr>
256</tbody>
257</table>
258</dd></dl>
259
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