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Data.table

2,427 bytes added, 16:23, 27 November 2018
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<h3 style="color:#aaa; font-style:italic"><span style="font-family:courier new,courier,monospace">Input</span></h3>
<div style="background:#eee;border:1px solid #ccc;padding:5px 10px;"><span style="font-sizefamily:11pxcourier new,courier,monospace"><span style="font-familysize:courier new,courier,monospace11px">&nbsp;&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Species &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ID &nbsp; &nbsp; &nbsp; Var1 Var2 &nbsp; &nbsp; &nbsp; &nbsp; Val &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Group &nbsp; &nbsp; &nbsp;Print_name<br />
&nbsp; &nbsp; 1: Dendronephthya_gigantea g30906.t1.cds@g30906@000029F CDS_length Full 2.01600e+03 Non-symbiotic_cnidarian Carnation_coral<br />
&nbsp; &nbsp; 2: Dendronephthya_gigantea g14782.t1.cds@g14782@000108F CDS_length Full 4.02000e+02 Non-symbiotic_cnidarian Carnation_coral<br />
<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-sizefamily:11pxcourier new,courier,monospace"><span style="font-familysize:courier new,courier,monospace11px">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;ID CDS_length &nbsp; &nbsp; &nbsp;FPKM<br />
&nbsp; &nbsp; 1: &nbsp; &nbsp; &nbsp; g10.t1.cds@g10@000002F &nbsp; &nbsp; &nbsp; 1185 30.363500<br />
&nbsp; &nbsp; 2: &nbsp; &nbsp; g100.t1.cds@g100@000002F &nbsp; &nbsp; &nbsp; &nbsp;696 &nbsp;0.959006<br />
&nbsp; &nbsp; 4: g10000.t1.cds@g10000@000064F &nbsp; &nbsp; &nbsp; 1074 &nbsp;0.278465<br />
&nbsp; &nbsp; 5: g10001.t1.cds@g10001@000064F &nbsp; &nbsp; &nbsp; &nbsp;522 &nbsp;0.962268&nbsp; &nbsp;&nbsp;</span></span></div>
 
<h1><span style="font-family:courier new,courier,monospace">Data table aggregation with &#39;by&#39;</span></h1>
 
<h3 style="color:#aaa;font-style:italic;"><span style="font-family:courier new,courier,monospace">Input</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; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;ID CDS_length &nbsp; &nbsp; &nbsp;FPKM &nbsp; ord bin<br />
&nbsp; &nbsp; 1: &nbsp; &nbsp; &nbsp; g10.t1.cds@g10@000002F &nbsp;10.210671 4.9242662 10665 &nbsp; 8<br />
&nbsp; &nbsp; 2: g10002.t1.cds@g10002@000064F &nbsp;12.039262 2.3361320 &nbsp;3975 &nbsp; 3<br />
&nbsp; &nbsp; 3: g10008.t1.cds@g10008@000073F &nbsp; 9.162391 0.6201266 &nbsp; 856 &nbsp; 1<br />
&nbsp; &nbsp; 4: g10011.t1.cds@g10011@000073F &nbsp; 9.942515 1.9781956 &nbsp;3149 &nbsp; 3<br />
&nbsp; &nbsp; 5: g10012.t1.cds@g10012@000073F &nbsp;10.762382 0.5596289 &nbsp; 785 &nbsp; 1</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[, .(Mean_CDS_length = mean(CDS_length), Mean_FPKM = mean(FPKM)), by=bin]</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; bin Mean_CDS_length Mean_FPKM<br />
&nbsp;1: &nbsp; 8 &nbsp; &nbsp; &nbsp; 10.187520 4.7044951<br />
&nbsp;2: &nbsp; 3 &nbsp; &nbsp; &nbsp; 10.590668 2.0831168<br />
&nbsp;3: &nbsp; 1 &nbsp; &nbsp; &nbsp; 10.488467 0.4904325<br />
&nbsp;4: &nbsp; 4 &nbsp; &nbsp; &nbsp; 10.550280 2.6412267<br />
&nbsp;5: &nbsp; 2 &nbsp; &nbsp; &nbsp; 10.541246 1.3801430<br />
&nbsp;6: &nbsp; 7 &nbsp; &nbsp; &nbsp; 10.344120 4.1326888<br />
&nbsp;7: &nbsp; 6 &nbsp; &nbsp; &nbsp; 10.377043 3.6221557<br />
&nbsp;8: &nbsp;10 &nbsp; &nbsp; &nbsp; &nbsp;9.563917 7.4570552<br />
&nbsp;9: &nbsp; 5 &nbsp; &nbsp; &nbsp; 10.509382 3.1425986<br />
10: &nbsp; 9 &nbsp; &nbsp; &nbsp; &nbsp;9.941699 5.4668993</span></span></div>
 
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