如何将char变量中的大数字转换为数字变量？

Question

>str(data$Installs)

$安装次数：因子w / 21级“”，“ 0 +”，“ 1 +”，“ 1,000 +”，..：8 20 15 18 11 17 17 5 5 8 ...

 db$Installs = as.character(gsub("\\+", "", db$Installs))

 str(db$Installs)
  chr [1:10841] "10,000" "500,000" "5,000,000" "50,000,000" "100,000" "50,000" "50,000" "1,000,000" "1,000,000" "10,000" ...

 db$Installs = as.double(gsub(",","",db$Installs))

 str(db$Installs)
  num [1:10841] 1e+04 5e+05 5e+06 5e+07 1e+05 5e+04 5e+04 1e+06 1e+06 1e+04 ...

我想要这样的变量：

“ 10000”“ 500000”“ 5000000”“ 50000000”“ 100000”“ 50000”“ 50000”“ 1000000”“ 1000000”“ 10000” ...

我尝试了这段代码

db$Installs.factor <- factor(db$Installs) 
db$Installs = as.character(gsub("\\+", "", db$Installs))
db$Installs = as.double(gsub(",","",db$Installs))

Answer 1

尝试一下

输入-

sample <- c("10,000+" ,"500,000+", "5,000,000+", "50,000,000+" ,"100,000+", "50,000+" ,"50,000+" ,"1,000,000+" )

解决方案-

sample <- as.numeric(gsub("\\D", "", sample))

输出-

1]    10000   500000  5000000 50000000   100000    50000    50000  1000000

注意-如果要强制R不使用指数表示法，则可以使用-

options("scipen"=100, "digits"=4)

“ 密码”：整数。决定以固定或指数形式打印数字值时要施加的罚款。正值偏向固定值，负值偏向科学记数法：除非固定记号的位数大于“科学”位数，否则将是首选。