阻止R将文本解释为数字

我试图在R中导入一个CSV，其中包含邮政编码信息，当我需要它保留为字符时，R将其解释为数字

data = read.csv("zipCodeInformation.csv", stringsAsFactor = FALSE)

数据的格式如下：

Lower.Zip, Upper.Zip, Zone
004,       005,       Zone.8
006,       007,       Zone.45
009,          ,       Zone.45
010,       089,       Zone.8
100,       339,       Zone.8

现在发生的是R将前两列解释为数字，并将它们转换为以下内容：

Lower.Zip, Upper.Zip, Zone
4,         5,         Zone.8
6,         7,         Zone.45
9,          ,         Zone.45
10,        89,        Zone.8
100,       339,       Zone.8

---

将

colClasses

参数用于

read.csv

Data <- read.csv(text="Lower.Zip, Upper.Zip, Zone
004,       005,       Zone.8
006,       007,       Zone.45
009,          ,       Zone.45
010,       089,       Zone.8
100,       339,       Zone.8",
colClasses=rep("character",3))  # you may want to add strip.white=TRUE

---

Data将
colClasses
参数用于
read.csv

Data <- read.csv(text="Lower.Zip, Upper.Zip, Zone
004,       005,       Zone.8
006,       007,       Zone.45
009,          ,       Zone.45
010,       089,       Zone.8
100,       339,       Zone.8",
colClasses=rep("character",3))  # you may want to add strip.white=TRUE

数据