forked from matplotlib/matplotlib.github.com
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathcategory.html
More file actions
378 lines (309 loc) · 30.4 KB
/
category.html
File metadata and controls
378 lines (309 loc) · 30.4 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>matplotlib.category — Matplotlib 3.1.1 documentation</title>
<link rel="stylesheet" href="../../_static/mpl.css"
type="text/css" />
<link rel="stylesheet" href="../../_static/pygments.css"
type="text/css" />
<link rel="stylesheet" href="../../_static/graphviz.css" type="text/css" />
<link rel="stylesheet" href="../../_static/gallery.css" type="text/css" />
<link rel="stylesheet" href="../../_static/copybutton.css" type="text/css" />
<script type="text/javascript" id="documentation_options" data-url_root="../../" src="../../_static/documentation_options.js"></script>
<script type="text/javascript" src="../../_static/jquery.js"></script>
<script type="text/javascript" src="../../_static/underscore.js"></script>
<script type="text/javascript" src="../../_static/doctools.js"></script>
<script type="text/javascript" src="../../_static/language_data.js"></script>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/clipboard.js/2.0.0/clipboard.min.js"></script>
<script type="text/javascript" src="../../_static/copybutton.js"></script>
<script async="async" type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/latest.js?config=TeX-AMS-MML_HTMLorMML"></script>
<link rel="search" type="application/opensearchdescription+xml"
title="Search within Matplotlib 3.1.1 documentation"
href="../../_static/opensearch.xml"/>
<link rel="shortcut icon" href="../../_static/favicon.ico"/>
<link rel="index" title="Index" href="../../genindex.html"
/>
<link rel="search" title="Search" href="../../search.html"
/>
<link rel="top" title="Matplotlib 3.1.1 documentation" href="../../index.html" />
<link rel="up" title="matplotlib" href="../matplotlib.html" />
<link rel="canonical" href="https://matplotlib.org/3.1.1/_modules/matplotlib/category.html" />
</head>
<body>
<div style="background-color: white; text-align: left; padding: 10px 10px 15px 15px; position: relative;">
<a href="../../index.html">
<div style="float: left; position: absolute; width: 496px; bottom: 0; padding-bottom: 24px"><span style="float: right; color: #789; background: white">Version 3.1.1</span></div>
<img src="../../_static/logo2.png" height="125px" border="0" alt="matplotlib"/></a>
<!-- The "Fork me on github" ribbon -->
<div id="forkongithub"><a href="https://github.com/matplotlib/matplotlib">Fork me on GitHub</a></div>
</div>
<div class="related">
<h3>Navigation</h3>
<ul>
<li class="right" style="margin-right: 10px">
<a href="../../genindex.html" title="General Index"
accesskey="I">index</a></li>
<li class="right" >
<a href="../../py-modindex.html" title="Python Module Index"
>modules</a> |</li>
<li><a href="../../index.html">home</a>| </li>
<li><a href="../../gallery/index.html">examples</a>| </li>
<li><a href="../../tutorials/index.html">tutorials</a>| </li>
<li><a href="../../api/index.html">API</a>| </li>
<li><a href="../../contents.html">contents</a> »</li>
<li><a href="../index.html" >Module code</a> »</li>
<li><a href="../matplotlib.html" accesskey="U">matplotlib</a> »</li>
</ul>
</div>
<div class="sphinxsidebar">
<div class="sphinxsidebarwrapper">
<div id="searchbox" style="display: none" role="search">
<h3>Quick search</h3>
<div class="searchformwrapper">
<form class="search" action="../../search.html" method="get">
<input type="text" name="q" />
<input type="submit" value="Go" />
<input type="hidden" name="check_keywords" value="yes" />
<input type="hidden" name="area" value="default" />
</form>
</div>
</div>
<script type="text/javascript">$('#searchbox').show(0);</script><div class="relations">
<h3>Related Topics</h3>
<ul>
<li><a href="../../contents.html">Documentation overview</a><ul>
<li><a href="../index.html">Module code</a><ul>
<li><a href="../matplotlib.html">matplotlib</a><ul>
</ul></li>
</ul></li>
</ul></li>
</ul>
</div>
</div>
</div>
<div class="document">
<div class="documentwrapper">
<div class="bodywrapper">
<div class="body">
<h1>Source code for matplotlib.category</h1><div class="highlight"><pre>
<span></span><span class="sd">"""</span>
<span class="sd">Module that allows plotting of string "category" data. i.e.</span>
<span class="sd">``plot(['d', 'f', 'a'],[1, 2, 3])`` will plot three points with x-axis</span>
<span class="sd">values of 'd', 'f', 'a'.</span>
<span class="sd">See :doc:`/gallery/lines_bars_and_markers/categorical_variables` for an</span>
<span class="sd">example.</span>
<span class="sd">The module uses Matplotlib's `matplotlib.units` mechanism to convert from</span>
<span class="sd">strings to integers, provides a tick locator and formatter, and the</span>
<span class="sd">class:`.UnitData` that creates and stores the string-to-integer mapping.</span>
<span class="sd">"""</span>
<span class="kn">from</span> <span class="nn">collections</span> <span class="k">import</span> <span class="n">OrderedDict</span>
<span class="kn">import</span> <span class="nn">dateutil.parser</span>
<span class="kn">import</span> <span class="nn">itertools</span>
<span class="kn">import</span> <span class="nn">logging</span>
<span class="kn">import</span> <span class="nn">numpy</span> <span class="k">as</span> <span class="nn">np</span>
<span class="kn">import</span> <span class="nn">matplotlib.cbook</span> <span class="k">as</span> <span class="nn">cbook</span>
<span class="kn">import</span> <span class="nn">matplotlib.units</span> <span class="k">as</span> <span class="nn">units</span>
<span class="kn">import</span> <span class="nn">matplotlib.ticker</span> <span class="k">as</span> <span class="nn">ticker</span>
<span class="n">_log</span> <span class="o">=</span> <span class="n">logging</span><span class="o">.</span><span class="n">getLogger</span><span class="p">(</span><span class="vm">__name__</span><span class="p">)</span>
<div class="viewcode-block" id="StrCategoryConverter"><a class="viewcode-back" href="../../api/category_api.html#matplotlib.category.StrCategoryConverter">[docs]</a><span class="k">class</span> <span class="nc">StrCategoryConverter</span><span class="p">(</span><span class="n">units</span><span class="o">.</span><span class="n">ConversionInterface</span><span class="p">):</span>
<div class="viewcode-block" id="StrCategoryConverter.convert"><a class="viewcode-back" href="../../api/category_api.html#matplotlib.category.StrCategoryConverter.convert">[docs]</a> <span class="nd">@staticmethod</span>
<span class="k">def</span> <span class="nf">convert</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">unit</span><span class="p">,</span> <span class="n">axis</span><span class="p">):</span>
<span class="sd">"""Convert strings in value to floats using</span>
<span class="sd"> mapping information store in the unit object.</span>
<span class="sd"> Parameters</span>
<span class="sd"> ----------</span>
<span class="sd"> value : string or iterable</span>
<span class="sd"> Value or list of values to be converted.</span>
<span class="sd"> unit : `.UnitData`</span>
<span class="sd"> An object mapping strings to integers.</span>
<span class="sd"> axis : `~matplotlib.axis.Axis`</span>
<span class="sd"> axis on which the converted value is plotted.</span>
<span class="sd"> .. note:: *axis* is unused.</span>
<span class="sd"> Returns</span>
<span class="sd"> -------</span>
<span class="sd"> mapped_value : float or ndarray[float]</span>
<span class="sd"> """</span>
<span class="k">if</span> <span class="n">unit</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span>
<span class="s1">'Missing category information for StrCategoryConverter; '</span>
<span class="s1">'this might be caused by unintendedly mixing categorical and '</span>
<span class="s1">'numeric data'</span><span class="p">)</span>
<span class="c1"># dtype = object preserves numerical pass throughs</span>
<span class="n">values</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">atleast_1d</span><span class="p">(</span><span class="n">np</span><span class="o">.</span><span class="n">array</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">dtype</span><span class="o">=</span><span class="nb">object</span><span class="p">))</span>
<span class="c1"># pass through sequence of non binary numbers</span>
<span class="k">if</span> <span class="nb">all</span><span class="p">((</span><span class="n">units</span><span class="o">.</span><span class="n">ConversionInterface</span><span class="o">.</span><span class="n">is_numlike</span><span class="p">(</span><span class="n">v</span><span class="p">)</span> <span class="ow">and</span>
<span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">v</span><span class="p">,</span> <span class="p">(</span><span class="nb">str</span><span class="p">,</span> <span class="nb">bytes</span><span class="p">)))</span> <span class="k">for</span> <span class="n">v</span> <span class="ow">in</span> <span class="n">values</span><span class="p">):</span>
<span class="k">return</span> <span class="n">np</span><span class="o">.</span><span class="n">asarray</span><span class="p">(</span><span class="n">values</span><span class="p">,</span> <span class="n">dtype</span><span class="o">=</span><span class="nb">float</span><span class="p">)</span>
<span class="c1"># force an update so it also does type checking</span>
<span class="n">unit</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">values</span><span class="p">)</span>
<span class="n">str2idx</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">vectorize</span><span class="p">(</span><span class="n">unit</span><span class="o">.</span><span class="n">_mapping</span><span class="o">.</span><span class="fm">__getitem__</span><span class="p">,</span>
<span class="n">otypes</span><span class="o">=</span><span class="p">[</span><span class="nb">float</span><span class="p">])</span>
<span class="n">mapped_value</span> <span class="o">=</span> <span class="n">str2idx</span><span class="p">(</span><span class="n">values</span><span class="p">)</span>
<span class="k">return</span> <span class="n">mapped_value</span></div>
<div class="viewcode-block" id="StrCategoryConverter.axisinfo"><a class="viewcode-back" href="../../api/category_api.html#matplotlib.category.StrCategoryConverter.axisinfo">[docs]</a> <span class="nd">@staticmethod</span>
<span class="k">def</span> <span class="nf">axisinfo</span><span class="p">(</span><span class="n">unit</span><span class="p">,</span> <span class="n">axis</span><span class="p">):</span>
<span class="sd">"""Sets the default axis ticks and labels</span>
<span class="sd"> Parameters</span>
<span class="sd"> ----------</span>
<span class="sd"> unit : `.UnitData`</span>
<span class="sd"> object string unit information for value</span>
<span class="sd"> axis : `~matplotlib.Axis.axis`</span>
<span class="sd"> axis for which information is being set</span>
<span class="sd"> Returns</span>
<span class="sd"> -------</span>
<span class="sd"> axisinfo : `~matplotlib.units.AxisInfo`</span>
<span class="sd"> Information to support default tick labeling</span>
<span class="sd"> .. note: axis is not used</span>
<span class="sd"> """</span>
<span class="c1"># locator and formatter take mapping dict because</span>
<span class="c1"># args need to be pass by reference for updates</span>
<span class="n">majloc</span> <span class="o">=</span> <span class="n">StrCategoryLocator</span><span class="p">(</span><span class="n">unit</span><span class="o">.</span><span class="n">_mapping</span><span class="p">)</span>
<span class="n">majfmt</span> <span class="o">=</span> <span class="n">StrCategoryFormatter</span><span class="p">(</span><span class="n">unit</span><span class="o">.</span><span class="n">_mapping</span><span class="p">)</span>
<span class="k">return</span> <span class="n">units</span><span class="o">.</span><span class="n">AxisInfo</span><span class="p">(</span><span class="n">majloc</span><span class="o">=</span><span class="n">majloc</span><span class="p">,</span> <span class="n">majfmt</span><span class="o">=</span><span class="n">majfmt</span><span class="p">)</span></div>
<div class="viewcode-block" id="StrCategoryConverter.default_units"><a class="viewcode-back" href="../../api/category_api.html#matplotlib.category.StrCategoryConverter.default_units">[docs]</a> <span class="nd">@staticmethod</span>
<span class="k">def</span> <span class="nf">default_units</span><span class="p">(</span><span class="n">data</span><span class="p">,</span> <span class="n">axis</span><span class="p">):</span>
<span class="sd">"""Sets and updates the :class:`~matplotlib.Axis.axis` units.</span>
<span class="sd"> Parameters</span>
<span class="sd"> ----------</span>
<span class="sd"> data : string or iterable of strings</span>
<span class="sd"> axis : `~matplotlib.Axis.axis`</span>
<span class="sd"> axis on which the data is plotted</span>
<span class="sd"> Returns</span>
<span class="sd"> -------</span>
<span class="sd"> class : `.UnitData`</span>
<span class="sd"> object storing string to integer mapping</span>
<span class="sd"> """</span>
<span class="c1"># the conversion call stack is supposed to be</span>
<span class="c1"># default_units->axis_info->convert</span>
<span class="k">if</span> <span class="n">axis</span><span class="o">.</span><span class="n">units</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">axis</span><span class="o">.</span><span class="n">set_units</span><span class="p">(</span><span class="n">UnitData</span><span class="p">(</span><span class="n">data</span><span class="p">))</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">axis</span><span class="o">.</span><span class="n">units</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">data</span><span class="p">)</span>
<span class="k">return</span> <span class="n">axis</span><span class="o">.</span><span class="n">units</span></div></div>
<div class="viewcode-block" id="StrCategoryLocator"><a class="viewcode-back" href="../../api/category_api.html#matplotlib.category.StrCategoryLocator">[docs]</a><span class="k">class</span> <span class="nc">StrCategoryLocator</span><span class="p">(</span><span class="n">ticker</span><span class="o">.</span><span class="n">Locator</span><span class="p">):</span>
<span class="sd">"""tick at every integer mapping of the string data"""</span>
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">units_mapping</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Parameters</span>
<span class="sd"> -----------</span>
<span class="sd"> units_mapping : Dict[str, int]</span>
<span class="sd"> string:integer mapping</span>
<span class="sd"> """</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_units</span> <span class="o">=</span> <span class="n">units_mapping</span>
<span class="k">def</span> <span class="nf">__call__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="nb">list</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_units</span><span class="o">.</span><span class="n">values</span><span class="p">())</span>
<div class="viewcode-block" id="StrCategoryLocator.tick_values"><a class="viewcode-back" href="../../api/category_api.html#matplotlib.category.StrCategoryLocator.tick_values">[docs]</a> <span class="k">def</span> <span class="nf">tick_values</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">vmin</span><span class="p">,</span> <span class="n">vmax</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="p">()</span></div></div>
<div class="viewcode-block" id="StrCategoryFormatter"><a class="viewcode-back" href="../../api/category_api.html#matplotlib.category.StrCategoryFormatter">[docs]</a><span class="k">class</span> <span class="nc">StrCategoryFormatter</span><span class="p">(</span><span class="n">ticker</span><span class="o">.</span><span class="n">Formatter</span><span class="p">):</span>
<span class="sd">"""String representation of the data at every tick"""</span>
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">units_mapping</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Parameters</span>
<span class="sd"> ----------</span>
<span class="sd"> units_mapping : Dict[Str, int]</span>
<span class="sd"> string:integer mapping</span>
<span class="sd"> """</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_units</span> <span class="o">=</span> <span class="n">units_mapping</span>
<span class="k">def</span> <span class="nf">__call__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">x</span><span class="p">,</span> <span class="n">pos</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
<span class="k">if</span> <span class="n">pos</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">return</span> <span class="s2">""</span>
<span class="n">r_mapping</span> <span class="o">=</span> <span class="p">{</span><span class="n">v</span><span class="p">:</span> <span class="n">StrCategoryFormatter</span><span class="o">.</span><span class="n">_text</span><span class="p">(</span><span class="n">k</span><span class="p">)</span>
<span class="k">for</span> <span class="n">k</span><span class="p">,</span> <span class="n">v</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_units</span><span class="o">.</span><span class="n">items</span><span class="p">()}</span>
<span class="k">return</span> <span class="n">r_mapping</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="nb">int</span><span class="p">(</span><span class="n">np</span><span class="o">.</span><span class="n">round</span><span class="p">(</span><span class="n">x</span><span class="p">)),</span> <span class="s1">''</span><span class="p">)</span>
<span class="nd">@staticmethod</span>
<span class="k">def</span> <span class="nf">_text</span><span class="p">(</span><span class="n">value</span><span class="p">):</span>
<span class="sd">"""Converts text values into utf-8 or ascii strings.</span>
<span class="sd"> """</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="nb">bytes</span><span class="p">):</span>
<span class="n">value</span> <span class="o">=</span> <span class="n">value</span><span class="o">.</span><span class="n">decode</span><span class="p">(</span><span class="n">encoding</span><span class="o">=</span><span class="s1">'utf-8'</span><span class="p">)</span>
<span class="k">elif</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="nb">str</span><span class="p">):</span>
<span class="n">value</span> <span class="o">=</span> <span class="nb">str</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
<span class="k">return</span> <span class="n">value</span></div>
<div class="viewcode-block" id="UnitData"><a class="viewcode-back" href="../../api/category_api.html#matplotlib.category.UnitData">[docs]</a><span class="k">class</span> <span class="nc">UnitData</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span>
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">data</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Create mapping between unique categorical values and integer ids.</span>
<span class="sd"> Parameters</span>
<span class="sd"> ----------</span>
<span class="sd"> data : iterable</span>
<span class="sd"> sequence of string values</span>
<span class="sd"> """</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_mapping</span> <span class="o">=</span> <span class="n">OrderedDict</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_counter</span> <span class="o">=</span> <span class="n">itertools</span><span class="o">.</span><span class="n">count</span><span class="p">()</span>
<span class="k">if</span> <span class="n">data</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">data</span><span class="p">)</span>
<span class="nd">@staticmethod</span>
<span class="k">def</span> <span class="nf">_str_is_convertible</span><span class="p">(</span><span class="n">val</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Helper method to see if a string can be cast to float or</span>
<span class="sd"> parsed as date.</span>
<span class="sd"> """</span>
<span class="k">try</span><span class="p">:</span>
<span class="nb">float</span><span class="p">(</span><span class="n">val</span><span class="p">)</span>
<span class="k">except</span> <span class="ne">ValueError</span><span class="p">:</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">dateutil</span><span class="o">.</span><span class="n">parser</span><span class="o">.</span><span class="n">parse</span><span class="p">(</span><span class="n">val</span><span class="p">)</span>
<span class="k">except</span> <span class="ne">ValueError</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">False</span>
<span class="k">return</span> <span class="kc">True</span>
<div class="viewcode-block" id="UnitData.update"><a class="viewcode-back" href="../../api/category_api.html#matplotlib.category.UnitData.update">[docs]</a> <span class="k">def</span> <span class="nf">update</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">data</span><span class="p">):</span>
<span class="sd">"""Maps new values to integer identifiers.</span>
<span class="sd"> Parameters</span>
<span class="sd"> ----------</span>
<span class="sd"> data : iterable</span>
<span class="sd"> sequence of string values</span>
<span class="sd"> Raises</span>
<span class="sd"> ------</span>
<span class="sd"> TypeError</span>
<span class="sd"> If the value in data is not a string, unicode, bytes type</span>
<span class="sd"> """</span>
<span class="n">data</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">atleast_1d</span><span class="p">(</span><span class="n">np</span><span class="o">.</span><span class="n">array</span><span class="p">(</span><span class="n">data</span><span class="p">,</span> <span class="n">dtype</span><span class="o">=</span><span class="nb">object</span><span class="p">))</span>
<span class="c1"># check if convertible to number:</span>
<span class="n">convertible</span> <span class="o">=</span> <span class="kc">True</span>
<span class="k">for</span> <span class="n">val</span> <span class="ow">in</span> <span class="n">OrderedDict</span><span class="o">.</span><span class="n">fromkeys</span><span class="p">(</span><span class="n">data</span><span class="p">):</span>
<span class="c1"># OrderedDict just iterates over unique values in data.</span>
<span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">val</span><span class="p">,</span> <span class="p">(</span><span class="nb">str</span><span class="p">,</span> <span class="nb">bytes</span><span class="p">)):</span>
<span class="k">raise</span> <span class="ne">TypeError</span><span class="p">(</span><span class="s2">"</span><span class="si">{val!r}</span><span class="s2"> is not a string"</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">val</span><span class="o">=</span><span class="n">val</span><span class="p">))</span>
<span class="k">if</span> <span class="n">convertible</span><span class="p">:</span>
<span class="c1"># this will only be called so long as convertible is True.</span>
<span class="n">convertible</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_str_is_convertible</span><span class="p">(</span><span class="n">val</span><span class="p">)</span>
<span class="k">if</span> <span class="n">val</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_mapping</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_mapping</span><span class="p">[</span><span class="n">val</span><span class="p">]</span> <span class="o">=</span> <span class="nb">next</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_counter</span><span class="p">)</span>
<span class="k">if</span> <span class="n">convertible</span><span class="p">:</span>
<span class="n">_log</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">'Using categorical units to plot a list of strings '</span>
<span class="s1">'that are all parsable as floats or dates. If these '</span>
<span class="s1">'strings should be plotted as numbers, cast to the '</span>
<span class="s1">'appropriate data type before plotting.'</span><span class="p">)</span></div></div>
<span class="c1"># Register the converter with Matplotlib's unit framework</span>
<span class="n">units</span><span class="o">.</span><span class="n">registry</span><span class="p">[</span><span class="nb">str</span><span class="p">]</span> <span class="o">=</span> <span class="n">StrCategoryConverter</span><span class="p">()</span>
<span class="n">units</span><span class="o">.</span><span class="n">registry</span><span class="p">[</span><span class="n">np</span><span class="o">.</span><span class="n">str_</span><span class="p">]</span> <span class="o">=</span> <span class="n">StrCategoryConverter</span><span class="p">()</span>
<span class="n">units</span><span class="o">.</span><span class="n">registry</span><span class="p">[</span><span class="nb">bytes</span><span class="p">]</span> <span class="o">=</span> <span class="n">StrCategoryConverter</span><span class="p">()</span>
<span class="n">units</span><span class="o">.</span><span class="n">registry</span><span class="p">[</span><span class="n">np</span><span class="o">.</span><span class="n">bytes_</span><span class="p">]</span> <span class="o">=</span> <span class="n">StrCategoryConverter</span><span class="p">()</span>
</pre></div>
</div>
</div>
</div>
<div class="clearer"></div>
</div>
<div class="footer">
© Copyright 2002 - 2012 John Hunter, Darren Dale, Eric Firing, Michael Droettboom and the Matplotlib development team; 2012 - 2018 The Matplotlib development team.
<br />
Last updated on Jul 09, 2019.
Created using
<a href="http://sphinx-doc.org/">Sphinx</a> 1.8.5.
Doc version v3.1.1-9-g823365338.
</div>
<script>
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,'script','//www.google-analytics.com/analytics.js','ga');
ga('create', 'UA-55954603-1', 'auto');
ga('send', 'pageview');
</script>
</body>
<footer>
</footer>
</html>