如何在R中将字符串向量转换为整数向量？
[英]How to convert a vector of string into vector of integers in R?
问题描述
I have a vector string which looks like this 
我有一个看起来像这样的向量字符串
A <- c("162&u", "139&u", "87&us", "175&u", "54&us", "25&us", "46&us","16650", "16776", "16689", "16844")
How do I convert it into a vector of numeric arrays that looks like this in R? 如何将其转换为R中看起来像这样的数字数组向量？
A <- c(162,139,87, 175, 54,25,46,16650, 16776, 16689, 16844)
2 个解决方案
解决方案1
1 已采纳 2016-01-26 22:53:36
A generalized approach: 通用方法：
as.numeric(gsub("\\D+", "", A))
#[1] 162 139 87 175 54 25 46 16650 16776 16689 16844
解决方案2
0 2016-01-26 22:52:55
B <- as.numeric(gsub("&.*","",A))
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