有关R语言中用read.table函数导入csv.文件的问题

Question

我们老师要求用read.table函数在R中导入csv文件，我用的是RStudio，复制黏贴了老师给的代码：grades <- read.table("studentgrades.csv", header=TRUE, row.names="StudentID", sep=",")
在我的电脑上运行后显示：

grades<-read.table("studentgrades.csv",header-TRUE, row.names-"StudentID",sep-",")
Error in file(file, "rt") : cannot open the connection
In addition: Warning message:
In file(file, "rt") :
cannot open file 'studentgrades.csv': No such file or directory

求各位大神指导，这种情况要怎么解决呢

Answer 1

格式不对，没找到这个路径下的文件提示的
#Mac编写格式
grades <-read.table("/Users/DW/Downloads/studentgrades.csv",header=TRUE,
row.names = "StudentID",sep = ",")
#Windows编写格式
grades <-read.table("C:/ZS/Downloads/studentgrades.csv",header=TRUE,
row.names = "StudentID",sep = ",")