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| <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" | ||
| "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> | ||
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| <html xmlns = "http://www.w3.org/1999/xhtml"> | ||
| <!-- | ||
| SAME AS NELSON SOFTWARE | ||
| --> | ||
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| <head> | ||
| <meta name="generator" content= | ||
| "HTML Generated by Nelson"/> | ||
| <link rel="stylesheet" type="text/css" href="style.css" /> | ||
| <link rel="stylesheet" href="mono-blue.css" type="text/css" /> | ||
| <script src = "highlight.pack.js" type = "text/javascript"> | ||
| </script> | ||
| <script type = "text/javascript">hljs.highlightAll();</script> | ||
| </script> | ||
| <meta http-equiv="Content-Type" content = "text/html; charset=utf-8" /> | ||
| <title>Direct computation with Table</title> | ||
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| </head> | ||
| <body> | ||
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| <div class = "manualnavbar"> | ||
| <table width = "100%"><tr> | ||
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| <td width="30%" class="previous"> | ||
| <span class="top"><a href="1_accessing_manipulating_table.html"><< Accessing and Manipulating Tables in Nelson</a></span> | ||
| </td> | ||
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| <td width="40%" class="center"> | ||
| <span class="top"><a href="chapter_table.html">Tables</a></span> | ||
| </td> | ||
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| <td width = "30%" class = "next"> | ||
| <span class = "next"><a href = "array2table.html">array2table >></a></span> | ||
| </td> | ||
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| </tr></table> | ||
| <hr /> | ||
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| <h1 class="refname">Direct computation with Table</h1> | ||
| <hr/> | ||
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| <h3>Description</h3> | ||
| <hr/> | ||
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| <p></p> | ||
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| <p>You can perform calculations directly on tableswithout needing to index into them.</p> | ||
| <p>To perform such operations using the same syntax as you would for arrays, your tables must meet several criteria:</p> | ||
| <p>All variables within the table must have data types that support the intended calculations (e.g., numeric or logical types).</p> | ||
| <p>When performing an operation where only one operand is a table, the other operand must be either a numeric or logical array.</p> | ||
| <p>For operations involving two tables, they must have compatible sizes (i.e., the same number of rows and columns or the operation must make sense for the structures involved).</p> | ||
| <p/> | ||
| <p>Below is an example that demonstrates how to perform calculations without explicitly indexing into the table.</p> | ||
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| <h3>Example</h3> | ||
| <hr/> | ||
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| <p>Adding a New Column</p> | ||
| <pre> | ||
| <code class = "nelson">% Create a sample table with sensor data | ||
| T = table([1.5; -2.3; 4.7], [0.5; 1.1; -0.7], [-1; 2; 3], ... | ||
| 'VariableNames', {'Voltage', 'Current', 'Resistance'}); | ||
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| % Apply functions directly to the table columns | ||
| abs(T) | ||
| acos(T) | ||
| acosh(T) | ||
| T > 1 | ||
| T + 2 | ||
| T .* T | ||
| abs(sin(T)) + 1 | ||
| </code> | ||
| </pre> | ||
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| <h3>See also</h3> | ||
| <hr/> | ||
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| <p> | ||
| <a href = "abs.html" class = "link">abs</a>, <a href = "acos.html" class = "link">acos</a>, <a href = "acosh.html" class = "link">acosh</a>, <a href = "acot.html" class = "link">acot</a>, <a href = "acotd.html" class = "link">acotd</a>, <a href = "acoth.html" class = "link">acoth</a>, <a href = "acsc.html" class = "link">acsc</a>, <a href = "acscd.html" class = "link">acscd</a>, <a href = "acsch.html" class = "link">acsch</a>, <a href = "asec.html" class = "link">asec</a>, <a href = "asecd.html" class = "link">asecd</a>, <a href = "asech.html" class = "link">asech</a>, <a href = "asin.html" class = "link">asin</a>, <a href = "asind.html" class = "link">asind</a>, <a href = "asinh.html" class = "link">asinh</a>, <a href = "atan.html" class = "link">atan</a>, <a href = "atand.html" class = "link">atand</a>, <a href = "atanh.html" class = "link">atanh</a>, <a href = "ceil.html" class = "link">ceil</a>, <a href = "cosd.html" class = "link">cosd</a>, <a href = "cosh.html" class = "link">cosh</a>, <a href = "cospi.html" class = "link">cospi</a>, <a href = "cot.html" class = "link">cot</a>, <a href = "cotd.html" class = "link">cotd</a>, <a href = "coth.html" class = "link">coth</a>, <a href = "csc.html" class = "link">csc</a>, <a href = "cscd.html" class = "link">cscd</a>, <a href = "csch.html" class = "link">csch</a>, <a href = "exp.html" class = "link">exp</a>, <a href = "fix.html" class = "link">fix</a>, <a href = "floor.html" class = "link">floor</a>, <a href = "log.html" class = "link">log</a>, <a href = "log10.html" class = "link">log10</a>, <a href = "log1p.html" class = "link">log1p</a>, <a href = "log2.html" class = "link">log2</a>, <a href = "nextpow2.html" class = "link">nextpow2</a>, <a href = "round.html" class = "link">round</a>, <a href = "sec.html" class = "link">sec</a>, <a href = "secd.html" class = "link">secd</a>, <a href = "sech.html" class = "link">sech</a>, <a href = "sin.html" class = "link">sin</a>, <a href = "sind.html" class = "link">sind</a>, <a href = "sinh.html" class = "link">sinh</a>, <a href = "sinpi.html" class = "link">sinpi</a>, <a href = "sqrt.html" class = "link">sqrt</a>, <a href = "tan.html" class = "link">tan</a>, <a href = "tand.html" class = "link">tand</a>, <a href = "tanh.html" class = "link">tanh</a>, <a href = "var.html" class = "link">var</a>, <a href = "acosd.html" class = "link">acosd</a>, <a href = "not.html" class = "link">not</a>, <a href = "plus.html" class = "link">plus</a>, <a href = "minus.html" class = "link">minus</a>, <a href = "times.html" class = "link">times</a>, <a href = "eq.html" class = "link">eq</a>, <a href = "ge.html" class = "link">ge</a>, <a href = "gt.html" class = "link">gt</a>, <a href = "le.html" class = "link">le</a>, <a href = "ne.html" class = "link">ne</a>, <a href = "lt.html" class = "link">lt</a>, <a href = "mrdivide.html" class = "link">mrdivide</a>, <a href = "rem.html" class = "link">rem</a>, <a href = "power.html" class = "link">power</a>, <a href = "pow2.html" class = "link">pow2</a>, <a href = "or.html" class = "link">or</a>, <a href = "rem.html" class = "link">mod</a>, <a href = "ldivide.html" class = "link">ldivide</a>.</p> | ||
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| <h3>History</h3> | ||
| <hr/> | ||
|
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| <table summary = "history" style="width:50%"> | ||
| <tr> | ||
| <th>Version</th> | ||
| <th>Description</th> | ||
| </tr> | ||
| <tr> | ||
| <td>1.9.0</td> | ||
| <td>initial version</td> | ||
| </tr> | ||
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| </table> | ||
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| <h3>Author</h3> | ||
| <hr/> | ||
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| <p>Allan CORNET</p> | ||
|
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| <div class = "manualnavbar"> | ||
| <table width = "100%"><tr> | ||
|
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| <td width="30%" class="previous"> | ||
| <span class="top"><a href="1_accessing_manipulating_table.html"><< Accessing and Manipulating Tables in Nelson</a></span> | ||
| </td> | ||
|
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| <td width="40%" class="center"> | ||
| <span class="top"><a href="chapter_table.html">Tables</a></span> | ||
| </td> | ||
|
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| <td width = "30%" class = "next"> | ||
| <span class = "next"><a href = "array2table.html">array2table >></a></span> | ||
| </td> | ||
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| </tr></table> | ||
| <hr /> | ||
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| </body> | ||
|
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| </html> | ||
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