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Data.table

4,410 bytes added, 12:39, 24 January 2019
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<h1><span style="font-family:courier new,courier,monospace">Fast melt for Data table</span></h1>
<h3 style="color:#aaa;font-style:italic;"><span style="font-family:courier new,courier,monospace">Input (head)</span></h3>
<div style="background:#eee;border:1px solid #ccc;padding:5px 10px;"><span style="font-size:11px"><span style="font-family:courier new,courier,monospace">&nbsp; &nbsp; &nbsp; &nbsp; Position G4-SV40 G4-SV40-OHT<br />
&nbsp; &nbsp; 5: 101488768 &nbsp; &nbsp; &nbsp;54 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;49</span></span></div>
<h3 style="color:#aaa;font-style:italic;"><span style="font-family:courier new,courier,monospace">Code</span></h3>
<div style="background:#eee;border:1px solid #ccc;padding:5px 10px;"><big><span style="font-family:courier new,courier,monospace">melt(SeqDepth_dt, id.vars = &quot;Position&quot;)</span></big></div>
<h3 style="color:#aaa;font-style:italic;"><span style="font-family:courier new,courier,monospace">Output (head)</span></h3>
<div style="background:#eee;border:1px solid #ccc;padding:5px 10px;"><span style="font-size:11px"><span style="font-family:courier new,courier,monospace">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Position &nbsp; &nbsp;variable value<br />
10: &nbsp; 9 &nbsp; &nbsp; &nbsp; &nbsp;9.941699 5.4668993</span></span></div>
<ph1><span style="font-family:courier new,courier,monospace">Data table row-wise calculation</span></h1> <h3 style="color:#aaa; font-style:italic"><span style="font-family:courier new,courier,monospace">Input (head)</span></h3> <div style="background:#eee;border:1px solid #ccc;padding:5px 10px;"><span style="font-family:courier new,courier,monospace"><span style="font-size:11px">&nbsp; &nbsp;Description &nbsp; &nbsp; &nbsp; ID Anolis_carolinensis Balaena_mysticetus Balaenoptera_acutorostrata_scammoni<br />1: &nbsp; &nbsp;OG000001 OG000001 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 126 &nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;103 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 107<br />2: &nbsp; &nbsp;OG000002 OG000002 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;70 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 19 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;48<br />3: &nbsp; &nbsp;OG000003 OG000003 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;27 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 29 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;25<br />4: &nbsp; &nbsp;OG000004 OG000004 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;39 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 36 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;47<br />5: &nbsp; &nbsp;OG000005 OG000005 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 1 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 11 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 3</span></span></div> <h3 style="color:#aaa; font-style:italic"><span style="font-family:courier new,courier,monospace">Code</span></h3> <div style="background:#eee;border:1px solid #ccc;padding:5px 10px;"><span style="font-family:courier new,courier,monospace"><big>dt[,Sum := rowSums(.SD, na.rm=T), .SDcols = 3:5]</big></span></div> <div style="background:#eee;border:1px solid #ccc;padding:5px 10px;"><span style="font-family:courier new,courier,monospace"><big>dt[,Mean&nbsp;:= rowMeans(.SD, na.rm=T), .SDcols = 3:5]</big></span></div> <h3 style="color:#aaa; font-style:italic"><span style="font-family:courier new,courier,monospace">Output</span></h3> <div style="background:#eee;border:1px solid #ccc;padding:5px 10px;"><span style="font-family:courier new,courier,monospace"><span style="font-size:11px">&nbsp; &nbsp;Description &nbsp; &nbsp; &nbsp; ID Anolis_carolinensis Balaena_mysticetus Balaenoptera_acutorostrata_scammoni Sum &nbsp; &nbsp; &nbsp; Avg<br />1: &nbsp; &nbsp;OG000001 OG000001 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 126 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;103 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 107 336 112.00000<br />2: &nbsp; &nbsp;OG000002 OG000002 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;70 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 19 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;48 137 &nbsp;45.66667<br />3: &nbsp; &nbsp;OG000003 OG000003 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;27 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 29 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;25 &nbsp;81 &nbsp;27.00000<br />4: &nbsp; &nbsp;OG000004 OG000004 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;39 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 36 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;47 122 &nbsp;40.66667<br />5: &nbsp; &nbsp;OG000005 OG000005 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 1 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 11 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 3 &nbsp;15 &nbsp; 5.00000</span></span></pdiv>
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