文件中的错误（文件，“rt”）：即使设置正确的路径，也无法在 r 中打开连接

Question

loading required library

install.packages("tidyverse")
install.packages("dplyr")
library("tidyverse")
library("dplyr")

vector for file names

files<- list.files(path = "C:/Users/91932/Downloads/archive (2)/Fitabase Data 4.12.16-5.12.16",pattern =".csv")

concat directory to file names

files<-str_c("C:/Users/91932/Downloads/archive (2)/Fitabase Data 4.12.16-5.12.16",files)

applying function to each element of vector

> map_df(.x = files, .f = read.csv,)

in above function map_df() i am getting an error in file (file,"rt"), even after using setwd() to set path and checking using getwd() paths seems to be correct for.csv file.

why this error occurred? how to avoid such errors?

Answer 1

The error is because the path is wrong: you forgot the trailing slash in the path prefix in str_c . However, rather than using str_c , you can instruct list.files to give you full paths from the get-go:

files <- list.files(
    path = "C:/Users/91932/Downloads/archive (2)/Fitabase Data 4.12.16-5.12.16",
    pattern = ".csv",
    full.names = TRUE
)