[R] Error -> cannot open file 'specdata/001.csv': No such file or directory; Windows 8, R Version 3.2.1

[Nikita Dinger]

I am having a problem in opening the excel files in specdata folder.

I have completed coding the R program for the assignment but when I run the
following commands in the R console,

*source("pollutantmean.R")*
*> pollutantmean("specdata", "nitrate", 23)*

I get an error message stating

*Error in file(file, "rt") : cannot open the connection*
*In addition: Warning message:*
*In file(file, "rt") :*
*  cannot open file 'specdata/023.csv': No such file or directory*

I tried everything and reset my Working Directory to


*C:/Users/acer/My Documents/specdata/rprog-data-specdata/specdata*

After the last specdata folder are all the excel sheets numbered 001 to 332.

I searched the internet and all other options available, and got a solution
to open it using the following command:

*df <- read.csv("specdata/001.csv")*


This generated the following error message

*Error in file(file, "rt") : cannot open the connection*
*In addition: Warning message:*
*In file(file, "rt") :*
*  cannot open file 'specdata/001.csv': No such file or directory*

I have tried various other commands also such as


*path <- c(paste("./",directory, "/",formatC(id[i], width=3,
flag=0),".csv",sep=""))*

However, all the commands show some error.

What shall I do?
I am using the 3.2.1 version of R on a Windows 8 laptop.

Regards,
Nikita Dinger

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