你好,我有一个像这样的文件格式(TSV)
Name type Age Weight Height
Xxx M 12,34,23 50,30,60,70 4,5,6,5.5
Yxx F 21,14,32 40,50,20,40 3,4,5,5.5
Run Code Online (Sandbox Code Playgroud)
我想添加年龄、体重和身高中的所有值,并在其后添加一列,然后添加一些百分比,例如 Total_Height/Total_Weight (awk '$0=$0"\t"(NR==1?"Percentage" :$8/$7)')。我的数据集很大,用excel做不到。
像这样
Name type Age Weight Height Total_Age Total_Weight Total_Height Percentage
Xxx M 12,34,23 50,30,60,70 4,5,6,5.5 69 210 20.5 0.097
Yxx F 21,14,32 40,50,20,40 3,4,5,5.5 67 150 17.5 0.11
Run Code Online (Sandbox Code Playgroud)
使用您显示的示例,请尝试以下代码。
awk '
FNR==1{
print $0,"Total_Age Total_Weight Total_Height Percentage"
next
}
FNR>1{
totAge=totWeight=totHeight=0
split($3,tmp,",")
for(i in tmp){
totAge+=tmp[i]
}
split($4,tmp,",")
for(i in tmp){
totWeight+=tmp[i]
}
split($5,tmp,",")
for(i in tmp){
totHeight+=tmp[i]
}
$(NF+1)=totAge
$(NF+1)=totWeight
$(NF+1)=totHeight
$(NF+1)=$(NF-1)==0?"N/A":$NF/$(NF-1)
}
1' Input_file | column -t
Run Code Online (Sandbox Code Playgroud)
或者添加上述代码的简短版本awk:
awk '
BEGIN{OFS="\t"}
FNR==1{
print $0,"Total_Age Total_Weight Total_Height Percentage"
next
}
FNR>1{
totAge=totWeight=totHeight=0
split($3,tmp,",")
for(i in tmp){
totAge+=tmp[i]
}
split($4,tmp,",")
for(i in tmp){
totWeight+=tmp[i]
}
split($5,tmp,",")
for(i in tmp){
totHeight+=tmp[i]
}
$(NF+1)=totAge OFS totWeight OFS totHeight
$0=$0
$(NF+1)=( $(NF-1)==0 ? "N/A" : $NF/$(NF-1) )
}
1' Input_file | column -t
Run Code Online (Sandbox Code Playgroud)
解释:简单的解释是,取第三、第四和第五列的总和并将它们分配给该行的最后一列。因此,根据OP的要求添加具有最后一列和倒数第二列除法值的列值。用于column -t使其输出看起来更好。
在每个 Unix 机器上的任何 shell 中使用任何 awk,并且不会在每个记录中创建新字段(这会导致每次更改字段时 awk 重新构建记录)并且不会更新输入记录(这会导致效率低下)每次更改记录时,它都会导致 awk 将记录重新拆分为字段),并设计用于以任何顺序处理任意数量的值输入列:
$ cat tst.awk
BEGIN { FS=OFS="\t" }
{ printf "%s%s", $0, OFS }
NR==1 {
for (i=3; i<=NF; i++) {
printf "Total_%s%s", $i, OFS
tags[i] = $i
}
print "Percentage"
next
}
{
delete tot
for (i=3; i<=NF; i++) {
tag = tags[i]
n = split($i,vals,",")
for (j in vals) {
tot[tag] += vals[j]
}
printf "%s%s", tot[tag], OFS
}
printf "%0.3f%s", (tot["Weight"] ? tot["Height"] / tot["Weight"] : 0), ORS
}
Run Code Online (Sandbox Code Playgroud)
$ awk -f tst.awk file
Name type Age Weight Height Total_Age Total_Weight Total_Height Percentage
Xxx M 12,34,23 50,30,60,70 4,5,6,5.5 69 210 20.5 0.098
Yxx F 21,14,32 40,50,20,40 3,4,5,5.5 67 150 17.5 0.117
Run Code Online (Sandbox Code Playgroud)
$ awk -f tst.awk file | column -t
Name type Age Weight Height Total_Age Total_Weight Total_Height Percentage
Xxx M 12,34,23 50,30,60,70 4,5,6,5.5 69 210 20.5 0.098
Yxx F 21,14,32 40,50,20,40 3,4,5,5.5 67 150 17.5 0.117
Run Code Online (Sandbox Code Playgroud)
为了显示上述方法的功能优势,假设您需要添加更多值,例如ShoeSize和/或重新排列列的顺序,例如:
$ column -t file
Name type ShoeSize Height Age Weight
Xxx M 12,8,10 4,5,6,5.5 12,34,23 50,30,60,70
Yxx F 9,7,8 3,4,5,5.5 21,14,32 40,50,20,40
Run Code Online (Sandbox Code Playgroud)
现在运行上面的脚本,注意您为每个原始列添加了列,并且您仍然在末尾添加了Total_相同的高度/体重列:Percentage
$ awk -f tst.awk file | column -t
Name type ShoeSize Height Age Weight Total_ShoeSize Total_Height Total_Age Total_Weight Percentage
Xxx M 12,8,10 4,5,6,5.5 12,34,23 50,30,60,70 30 20.5 69 210 0.098
Yxx F 9,7,8 3,4,5,5.5 21,14,32 40,50,20,40 24 17.5 67 150 0.117
Run Code Online (Sandbox Code Playgroud)
| 归档时间: |
|
| 查看次数: |
272 次 |
| 最近记录: |