【问题标题】:AWK split column, count occurrences of second split variableAWK拆分列,计算第二个拆分变量的出现次数
【发布时间】:2016-05-24 19:12:23
【问题描述】:

我想用 awk 用 "(" 分割文件的第一列,并计算分割命令的每个第二个变量的出现次数。

cluster1(2 genes, 2 taxa):  column2 column 3
cluster1(2 genes, 2 taxa):  column2 column 3
cluster1(3 genes, 2 taxa):  column2 column 3
cluster1(3 genes, 2 taxa):  column2 column 3
cluster1(4 genes, 2 taxa):  column2 column 3

所以我的输出是

2 genes, 2 taxa = 2
3 genes, 2 taxa = 2
4 genes, 2 taxa = 1

感谢您的帮助, 凯特

【问题讨论】:

  • 那么你尝试了什么?

标签: awk split


【解决方案1】:
$ awk -F '[()]' '{arr[$2]++} END{for(i in arr) print i " = " arr[i]}' data 
4 genes, 2 taxa = 1
3 genes, 2 taxa = 2
2 genes, 2 taxa = 2

或使用uniq 进行管道计数:

$ grep -oP '(?<=\().*(?=\))' data | uniq -c | awk '{print $2,$3,$4,$5 " =",$1}'
2 genes, 2 taxa = 2
3 genes, 2 taxa = 2
4 genes, 2 taxa = 1

【讨论】:

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