[R] Running CSV File

[Jeff Reichman]

1. Working directory message. The message “The current active source is not
saved so does not have a directory to change into” appears when the script
you’re working in hasn’t been saved yet.
Once you save the script (File → Save As), RStudio will allow you to set
the working directory normally.

2. File not appearing in the directory. The dataset was saved on your
computer as “cancer data” without a file extension. RStudio won’t
recognize it as a CSV unless it ends in .
Renaming it to cancer_data.csv (or cancer data.csv) will make it show up
correctly.

3. Errors when running . The errors you received were caused by a few syntax
issues:
* 	Using  instead of
* 	Including a trailing comma inside the filename
* 	Using  instead of R’s required
* 	The file not having a  extension
After correcting these, the proper command is:

This should load the dataset as long as the working directory is set to the
folder where the file is saved

-----Original Message-----
From: R-help <r-help-bounces using r-project.org> On Behalf Of Li DiJulia
Sent: Saturday, March 28, 2026 12:27 PM
To: r-help using r-project.org
Subject: [R] Running CSV File

To whom it may concern,

I am trying to save this file "cancer data," which I have attached in this
email, into working directory and when I click on "to source file location"
under set working directory" it says- The current active source is not saved
so does not have a directory to change into. I even clicked on "choose
directory" under set working directory, my file still won't show up.

As for running data, When I downloaded the cancer data into R studio and ran
g<-read. csv (" cancer_data," header=True, sep ','), I got this error
message: *unexpected string consonant in g<-read. csv. (" cancer_data,"
header=True, sep ',').*

Note: I saved the data in my computer as "cancer data." I am not sure what I
am doing wrong. Please advise

When I tried this g<-read.csv. ("cancer_data," header=true, sep=",") I got
this: in read.csv. ("cancer_data, header= true, sep=','):could not find
function "read.csv". I am not sure what I am doing wrong. Please advise


Thanks.
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