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合并tcga网站上下载的clinical xml文件到一个csv

License: Apache License 2.0

Python 100.00%

tcga_clinical_2_csv's Introduction

合并tcga网站上下载的clinical xml文件到一个csv

从tcga网站上下载的xml文件,一个xml对应一个受试者,有着非常之多的「TAG」, 每个TAG代表一个临床指标,由于种种原因,有些xml文件中,会缺少在另外xml中有的指标。不同的癌种之间,还有着不同的特异指标。 一般情况下,进行TCGA数据挖掘时,就是针对一个类型的癌症进行分析, 因此只需要把相应的TAG提取出来后,再补上空白值,形成key值相同的dict,就能合并到一个文件中。 以及为思路,我写了这个脚本。

使用(不支持windows)

把下载的xml文件放到clin文件夹下(随便放,多深的子目录都能发现),python3 tcga_clinical_2_csv.py,会在当前目录下生成merge.csv。 当然你可以指定文件夹和合并文件 , python3 tcga_clinical_2_csv.py BRCA BRCA.csv

大体流程

  1. *unix系统的find命令提取所有目标文件夹下的xml文件
  2. 对每个xml
    • 获取xml root node
      • 如果node有子node,继续遍历子node
      • 返回当前node和子node合并的dict
  3. 获得所有dict后,遍历dict得到全部key,并把dict的缺失key补成空白
  4. 写入csv文件

其中有很多技巧请看源代码学习

tcga_clinical_2_csv's People

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Stargazers

Jian-Guo Zhou avatar

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