Cannot open the file

General
1

###*Regression and Stepwise Regression
rm(list=ls())
getwd()
holder<-"C:/Users/a0966/Documents"
setwd(holder)
df<-read.csv('887.csv',header=TRUE,sep=",")

Error in file(file, "rt") : cannot open the connection
In addition: Warning message:
In file(file, "rt") : cannot open file '887.csv': No such file or directory

2

It seems the file c:\Users\a0996\Documents\887.csv does not exist. Do you see it if you run

dir()
3

It still can not open

4

Does the output of the dir() function show the file 887.csv?

6

oh it showed 877, and i changed the code , but it shows
Error in make.names(col.names, unique = TRUE) :
invalid multibyte string at 'Ҩ'
螢幕擷取畫面 2022-12-09 040228

7

There is a character in the column names that is causing a problem. Can you edit the csv file in a text editor (e.g. Notepad) and reenter the column names?

8

thanks , I Solved it.

9

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