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1 <appendix label="E" id="appendix-cell-methods">
2   <title>Cell Methods</title>
3   <para>
4     In the <emphasis>Units</emphasis> column, <parameter>u</parameter> indicates the units of the physical quantity before the method is applied.
5     <table frame="all"><title>Cell Methods</title>
6       <tgroup cols="3" align="left" colsep="1" rowsep="1">
7       <colspec colwidth="1*"/>
8       <colspec colwidth="0.5*"/>
9       <colspec colwidth="2*"/>
10         <thead>
11           <row>
12             <entry><varname>cell_method</varname></entry>
13             <entry>Units</entry>
14             <entry>Description</entry>
15           </row>
16         </thead>
17         <tbody>
18           <row>
19             <entry><constant>point</constant></entry>
20             <entry><parameter>u</parameter></entry>
21             <entry>The data values are representative of points in space or time (instantaneous). This is the default method for a quantity that is intensive with respect to the specified dimension.</entry>     
22           </row>
23           <row>
24             <entry><constant>sum</constant></entry>
25             <entry><parameter>u</parameter></entry>
26             <entry>The data values are representative of a sum or accumulation over the cell. This is the default method for a quantity that is extensive with respect to the specified dimension.</entry>         
27           </row>
28           <row>
29             <entry><constant>maximum</constant></entry>
30             <entry><parameter>u</parameter></entry>
31             <entry>Maximum</entry>         
32           </row>
33           <row>
34             <entry><constant>median</constant></entry>
35             <entry><parameter>u</parameter></entry>
36             <entry>Median</entry>           
37           </row>
38           <row>
39             <entry><constant>mid_range</constant></entry>
40             <entry><parameter>u</parameter></entry>
41             <entry>Average of maximum and minimum</entry>           
42           </row>
43           <row>
44             <entry><constant>minimum</constant></entry>
45             <entry><parameter>u</parameter></entry>
46             <entry>Minimum</entry>         
47           </row>
48           <row>
49             <entry><constant>mean</constant></entry>
50             <entry><parameter>u</parameter></entry>
51             <entry>Mean (average value)</entry>     
52           </row>
53           <row>
54             <entry><constant>mode</constant></entry>
55             <entry><parameter>u</parameter></entry>
56             <entry>Mode (most common value)</entry>         
57           </row>
58           <row>
59             <entry><constant>standard_deviation</constant></entry>
60             <entry><parameter>u</parameter></entry>
61             <entry>Standard deviation</entry>       
62           </row>
63           <row>
64             <entry><constant>variance</constant></entry>
65             <entry><parameter>u</parameter><superscript>2</superscript></entry>
66             <entry>Variance</entry>         
67           </row>
68         </tbody>
69         </tgroup>
70     </table>
71   </para>
72 </appendix>
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