blob: 753f70cb7cb7406b4a4444d85a33d6766671d43e (
plain)
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
|
<?xml version="1.0" encoding="UTF-8"?>
<helpdocument version="1.0">
<!--
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
-->
<meta>
<topic id="datasampligtopic" indexer="include" status="PUBLISH">
<title xml-lang="en-US" id="tit">Data Sampling in Calc</title>
<filename>/text/scalc/01/statistics_sampling.xhp</filename>
</topic>
</meta>
<body>
<bookmark xml-lang="en-US" branch="index" id="bm_id2764278">
<bookmark_value>Analysis toolpack;sampling</bookmark_value>
<bookmark_value>sampling;Analysis toolpack</bookmark_value>
<bookmark_value>Data statistics;sampling</bookmark_value>
</bookmark>
<bookmark xml-lang="en-US" branch="hid/modules/scalc/ui/samplingdialog/SamplingDialog" id="bm_id2745673" localize="false"/>
<bookmark xml-lang="en-US" branch="hid/modules/scalc/ui/samplingdialog/@@nowidget@@" id="bm_id2745673" localize="false"/>
<section id="datasampling">
<h1 id="hd_id1000020"><variable id="datasamplingh1"><link href="text/scalc/01/statistics_sampling.xhp" name="Sampling">Sampling</link></variable></h1>
<paragraph id="par_id1000030" role="paragraph" xml-lang="en-US"><ahelp hid="modules/scalc/ui/samplingdialog/SamplingDialog">Create a table with data sampled from another table.</ahelp></paragraph>
</section>
<section id="howtoget">
<paragraph id="par_id1000040" role="paragraph" xml-lang="en-US"><variable id="sam01">Choose <menuitem>Data - Statistics - Sampling</menuitem></variable></paragraph>
</section>
<paragraph id="par_id1000050" role="paragraph" xml-lang="en-US">Sampling allows you to pick data from a <emph>source</emph> table (population) to fill a <emph>target</emph> table. The sampling can be random or in a periodic basis, as well as with or without sample replacement in the source table.</paragraph>
<note id="par_id1000060">Sampling is done row-wise. That means, the sampled data will pick the whole line of the source table and copy into a line of the target table.</note><embed href="text/scalc/01/stat_data.xhp#data"/>
<h2 id="hd_id1000030">Sampling Method</h2>
<h3 id="hd_id611623249550632">Random</h3>
<paragraph role="paragraph" id="par_id711623249563655">Picks exactly <emph>Sample Size</emph> lines of the source table in a random way.</paragraph>
<h3 id="hd_id431623249579089">Sample size</h3>
<paragraph role="paragraph" id="par_id461623249594879">Number of lines sampled from the source table. The Sample size is limited to the population size for all sampling methods without replacement.</paragraph>
<h3 id="hd_id931623249610097">With replacement</h3>
<paragraph role="paragraph" id="par_id191623249619384">When checked, put back samples in population (source table) after draw. A sample can be drawn more than once and therefore a larger sample size than population is possible. This option is mutually exclusive with <emph>Keep order</emph>. When unchecked, a sample drawn is not put back to the population and sample size is limited to population size.</paragraph>
<h3 id="hd_id791623249632175">Keep order</h3>
<paragraph role="paragraph" id="par_id741623249641180">When checked, samples are drawn in order of population data. Samples are not put back to the population (exclusive with <emph>With replacement</emph>). This option is automatically checked for <emph>Periodic</emph> sampling. When unchecked, samples are drawn in random order.</paragraph>
<h3 id="hd_id461623249656476">Periodic</h3>
<paragraph role="paragraph" id="par_id481623249667345">Picks lines in a pace defined by <emph>Period</emph>.</paragraph>
<h3 id="hd_id101623249682605">Period</h3>
<paragraph role="paragraph" id="par_id621623249692296">The number of lines to skip periodically when sampling. The <emph>Period</emph> is limited to the population size.</paragraph>
<embed href="text/scalc/01/common_func.xhp#sectionexample"/>
<paragraph id="par_id1000110" role="paragraph" xml-lang="en-US">The following data will be used as example of source data table for sampling:</paragraph>
<table id="Tabela1">
<tablerow>
<tablecell>
</tablecell>
<tablecell>
<paragraph id="par_id1000120" role="tablehead" xml-lang="en-US" localize="false">A</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id1000130" role="tablehead" xml-lang="en-US" localize="false">B</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id1000140" role="tablehead" xml-lang="en-US" localize="false">C</paragraph>
</tablecell>
</tablerow>
<tablerow>
<tablecell>
<paragraph id="par_id1000150" role="tablehead" xml-lang="en-US" localize="false">1</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id1000160" role="tablecontent" xml-lang="en-US" localize="false">11</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id1000170" role="tablecontent" xml-lang="en-US" localize="false">21</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id1000180" role="tablecontent" xml-lang="en-US" localize="false">31</paragraph>
</tablecell>
</tablerow>
<tablerow>
<tablecell>
<paragraph id="par_id1000190" role="tablehead" xml-lang="en-US" localize="false">2</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id1000200" role="tablecontent" xml-lang="en-US" localize="false">12</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id1000210" role="tablecontent" xml-lang="en-US" localize="false">22</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id1000220" role="tablecontent" xml-lang="en-US" localize="false">32</paragraph>
</tablecell>
</tablerow>
<tablerow>
<tablecell>
<paragraph id="par_id1000230" role="tablehead" xml-lang="en-US" localize="false">3</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id1000240" role="tablecontent" xml-lang="en-US" localize="false">13</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id1000250" role="tablecontent" xml-lang="en-US" localize="false">23</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id1000260" role="tablecontent" xml-lang="en-US" localize="false">33</paragraph>
</tablecell>
</tablerow>
<tablerow>
<tablecell>
<paragraph id="par_id1000270" role="tablehead" xml-lang="en-US" localize="false">4</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id1000280" role="tablecontent" xml-lang="en-US" localize="false">14</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id1000290" role="tablecontent" xml-lang="en-US" localize="false">24</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id1000300" role="tablecontent" xml-lang="en-US" localize="false">34</paragraph>
</tablecell>
</tablerow>
<tablerow>
<tablecell>
<paragraph id="par_id1000310" role="tablehead" xml-lang="en-US" localize="false">5</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id1000320" role="tablecontent" xml-lang="en-US" localize="false">15</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id1000330" role="tablecontent" xml-lang="en-US" localize="false">25</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id1000340" role="tablecontent" xml-lang="en-US" localize="false">35</paragraph>
</tablecell>
</tablerow>
<tablerow>
<tablecell>
<paragraph id="par_id1000350" role="tablehead" xml-lang="en-US" localize="false">6</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id1000360" role="tablecontent" xml-lang="en-US" localize="false">16</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id1000370" role="tablecontent" xml-lang="en-US" localize="false">26</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id1000380" role="tablecontent" xml-lang="en-US" localize="false">36</paragraph>
</tablecell>
</tablerow>
<tablerow>
<tablecell>
<paragraph id="par_id1000390" role="tablehead" xml-lang="en-US" localize="false">7</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id1000400" role="tablecontent" xml-lang="en-US" localize="false">17</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id1000410" role="tablecontent" xml-lang="en-US" localize="false">27</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id1000420" role="tablecontent" xml-lang="en-US" localize="false">37</paragraph>
</tablecell>
</tablerow>
<tablerow>
<tablecell>
<paragraph id="par_id1000430" role="tablehead" xml-lang="en-US" localize="false">8</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id1000440" role="tablecontent" xml-lang="en-US" localize="false">18</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id1000450" role="tablecontent" xml-lang="en-US" localize="false">28</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id1000460" role="tablecontent" xml-lang="en-US" localize="false">38</paragraph>
</tablecell>
</tablerow>
<tablerow>
<tablecell>
<paragraph id="par_id1000470" role="tablehead" xml-lang="en-US" localize="false">9</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id1000480" role="tablecontent" xml-lang="en-US" localize="false">19</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id1000490" role="tablecontent" xml-lang="en-US" localize="false">29</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id1000500" role="tablecontent" xml-lang="en-US" localize="false">39</paragraph>
</tablecell>
</tablerow>
</table>
<paragraph id="par_id1000510" role="paragraph" xml-lang="en-US">Sampling with a period of 2 will result in the following table:</paragraph>
<table id="Tabela2">
<tablerow>
<tablecell>
<paragraph id="par_id1000520" role="tablecontent" xml-lang="en-US" localize="false">12</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id1000530" role="tablecontent" xml-lang="en-US" localize="false">22</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id1000540" role="tablecontent" xml-lang="en-US" localize="false">32</paragraph>
</tablecell>
</tablerow>
<tablerow>
<tablecell>
<paragraph id="par_id1000550" role="tablecontent" xml-lang="en-US" localize="false">14</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id1000560" role="tablecontent" xml-lang="en-US" localize="false">24</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id1000570" role="tablecontent" xml-lang="en-US" localize="false">34</paragraph>
</tablecell>
</tablerow>
<tablerow>
<tablecell>
<paragraph id="par_id1000580" role="tablecontent" xml-lang="en-US" localize="false">16</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id1000590" role="tablecontent" xml-lang="en-US" localize="false">26</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id1000600" role="tablecontent" xml-lang="en-US" localize="false">36</paragraph>
</tablecell>
</tablerow>
<tablerow>
<tablecell>
<paragraph id="par_id1000610" role="tablecontent" xml-lang="en-US" localize="false">18</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id1000620" role="tablecontent" xml-lang="en-US" localize="false">28</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id1000630" role="tablecontent" xml-lang="en-US" localize="false">38</paragraph>
</tablecell>
</tablerow>
</table>
<section id="relatedtopics">
<embed href="text/scalc/01/stat_data.xhp#otherstat"/>
</section>
</body>
</helpdocument>
|
