April 2022
Beginner to intermediate
486 pages
10h 22m
Chinese
Content preview from 云端基因组学
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263
第
9
章
真实基因组工作流详解
第
8
章，我们不仅向你展示了如何用
WDL
将命令串成工作流，还带你练习在你的
云端虚拟机上用
Cromwell
系统运行这些工作流。整个第
8
章，我们都以非常简单
的工作流为例，将重点放在
WDL
的基本句法和规则上。本章我们所探讨的几个工
作流比你之前所见的更复杂。但不用担心，我们既不期望你能立即掌握其所有复杂
细节，也不期望你能记住你将遇到的多种代码特性。
我们的主要目标是向你展示真实基因组工作流所用逻辑、模式和策略，并在该过程
介绍一种方法论，以便你拆解并理解任意复杂的新工作流。为实现该目标，我们从
gatk-workflows
系列（
https://oreil.ly/D0Ofp
）选两个工作流，但是我们不会预先告
诉其用途。而是对于每个神秘的工作流，我们告诉你将从中学习的功能，接着带你
完成一系列步骤，以了解工作流的用途，了解我们所感兴趣功能的实现方式。我们
并非要在一夜之间将你变为
WDL
开发者，但是这部分内容将赋予你理解他人所编
工作流的技能，并提供少量练习机会，以便你有需要时可学着修改工作流，达到自
己的目的。
9.1
神秘工作流
1
：加入条件语句，提高灵活性
我们的第一个神秘工作流，为你提供学习使用条件语句的机会，以便学会控制运行
任务及其运行条件。它还展示工作流的参数和输出该如何控制才能更灵活。我们带
你拆解该工作流的过程，将遇到很多第
8
章已讲过的熟悉元素。然而不同于第
8
章
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.