<p>I often see the word <strong>depth</strong> in the manuals of the tools for NGS, what is its meaning  ?</p>

<p>thanks.</p>

<p>I believe it is the same concept as <a href="http://en.wikipedia.org/wiki/Shotgun_sequencing#Coverage">coverage</a>, it might come from a shorthand of saying <strong>depth of coverage</strong>.</p>
