I know I should save it as a .csv file, which I have done. I?m told I should use the read_excel() function from the readxl package. My question is, how do I express the location of the file. The file is named KurtzData.csv. Its location in my Mac files is DFPfiles/ae/FriendsMonroe/KurtzData.csv How exactly---What ?, etc.---do I type with its name in the read_excel() function? It?s been a long time since I?ve used R. Thanks for any help. [[alternative HTML version deleted]]
Dear David,?
I also use excel files for R. This is what I do
install.packages("readxl")
library(readxl)
mydata=read_excel('mydata.xlsx')
Hope this helps.?
Best,
Maria
???? ??????? 23 ??????????? 2023 ???? 09:23:43 ?.?. GMT+1, ? ??????? Parkhurst,
David <parkhurs at indiana.edu> ??????:
I know I should save it as a .csv file, which I have done.
I?m told I should use the read_excel() function from the readxl package.
My question is, how do I express the location of the file.? The file is named
KurtzData.csv.
Its location in my Mac files is DFPfiles/ae/FriendsMonroe/KurtzData.csv
How exactly---What ?, etc.---do I type with its name in the read_excel()
function?
It?s been a long time since I?ve used R.
Thanks for any help.
??? [[alternative HTML version deleted]]
______________________________________________
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https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
Are you sure that read.csv() can't read your data? [If you depend on extra packages you might want to consider using the 'groundhog' package so that you can be more confident of reproducing your work in a year or two.] You said that your question is how you should write the name of the file in your call to read.<whatever>.> ?read.csv... file the name of the file which the data are to be read from. ... If it does not contain an _absolute_ path, the file name is _relative_ to the current working directory, 'getwd()'. Tilde-expansion is performed where supported. "Tilde-expansion" refers to a common UNIX convention of replacing ~/ at the beginning of a file name by $HOME/ where $HOME is your home directory, and ~bongiwe/ by $HERS/ where $HERS holds the absolute name of user bongiwe's home directory. This is actually a shell convention, not an operating system kernel convention, but R is telling us "I can do that too". So for example to refer to one of my data files I might do jan17 <- read.csv("~/Data/Weather/2017-Jan.dat") "DFPfiles/ae/FriendsMonroe/KurtzData.csv" is NOT the location of the file on your system. It is PART of the location. We can be sure of that because it does not begin with a slash. So it is not an absolute file name. There is some value $DIR such that $DIR is an absolute file name and it names a directory and "$DIR/DFPfiles/ae/FriendsMonroe/KurtzData.csv" really IS the location of the file on your system. If the current working directory is (1) $DIR/DFPfiles/ae/FriendsMonroe/ use "KurtzData.csv" (2) $DIR/DFPfiles/ae/ use "FriendsMonroe/KurtzData.csv" (3) $DIR/DFPfiles use "ae/FriendsMonroe/KurtzData.csv" (4) $DIR use "DFPfiles/ae/FriendsMonroe/KurtzData.csv" (5) $DIR/DFPfiles/ae/FriendsMonroe/SubDir use "../KurtzData.csv" I suspect that $DIR may be your home directory, in which case you can substitute ~ for $DIR. Of course the file argument can be anything that *evaluates* to a character string containing a file name (or it can be a URL or it can be a 'text connection'). Following the advice in read.csv, you might want to read the 'R Data Import/Export' manual. On Sat, 23 Sept 2023 at 20:23, Parkhurst, David <parkhurs at indiana.edu> wrote:> I know I should save it as a .csv file, which I have done. > I?m told I should use the read_excel() function from the readxl package. > My question is, how do I express the location of the file. The file is > named KurtzData.csv. > Its location in my Mac files is DFPfiles/ae/FriendsMonroe/KurtzData.csv > How exactly---What ?, etc.---do I type with its name in the read_excel() > function? > It?s been a long time since I?ve used R. > Thanks for any help. > > > > > > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. >[[alternative HTML version deleted]]
Hi David,
If you're using RStudio, I'd encourage the use of R Projects, with a new
project for each analysis, even if you only do one every few years. That
would also correspond to a new directory for each analysis, which many also
find helpful. The package 'here' [install.packages("here")]
then uses the
.Rproj file to set file paths within each project. You can place your data
somewhere within the parent directory of the project and use
here::here("relative/path/to/my_file.csv") to tell R where the file
is. It
sounds like a trivial step, but it really can make referring to files on
disk like this much easier.
I'm not sure what the best parent folder would be for your analysis, but
assuming it's FriendsMonroe, you would start a new R Project in that
directory, keep all of your scripts in that directory, and refer to the
file using here::here("KurtzData.csv")
I do hope that helps,
Stevie
On Sat, 23 Sept 2023 at 17:53, Parkhurst, David <parkhurs at indiana.edu>
wrote:
> I know I should save it as a .csv file, which I have done.
> I?m told I should use the read_excel() function from the readxl package.
> My question is, how do I express the location of the file. The file is
> named KurtzData.csv.
> Its location in my Mac files is DFPfiles/ae/FriendsMonroe/KurtzData.csv
> How exactly---What ?, etc.---do I type with its name in the read_excel()
> function?
> It?s been a long time since I?ve used R.
> Thanks for any help.
>
>
>
>
>
>
> [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
[[alternative HTML version deleted]]
? Fri, 22 Sep 2023 23:10:58 +0000 "Parkhurst, David" <parkhurs at indiana.edu> ?????:> Its location in my Mac files is > DFPfiles/ae/FriendsMonroe/KurtzData.csv How exactly---What _, > etc.---do I type with its name in the read_excel() function?In RGui on Windows, file.choose() opens a dialog window letting the user choose a file interactively. Do you get a similar prompt if you run file.choose() in R.app? Choose the file, and it will return a string that would be most certainly suitable for read.csv(), read_excel(), and other functions that accept file paths. -- Best regards, Ivan
Dear David, Am 23.09.23 um 01:10 schrieb Parkhurst, David:> I know I should save it as a .csv file, which I have done. > I?m told I should use the read_excel() function from the readxl package. > My question is, how do I express the location of the file. The file is named KurtzData.csv. > Its location in my Mac files is DFPfiles/ae/FriendsMonroe/KurtzData.csv > How exactly---What ?, etc.---do I type with its name in the read_excel() function? > It?s been a long time since I?ve used R. > Thanks for any help. > > > [[alternative HTML version deleted]]Even though there are already some answers, I would like to comment on the question. The advice to export the excel data to a csv file to import it afterwards from the readxl package into R using read_excel() is a bit around the corner. Instead, the readxl package can better read the Excel format directly, both the one as .xls format and the new .xlsx format. I am basically a proponent for reading original data (here Excel) directly and not via an intermediate format like csv. This avoids, among other things, that subsequently supplemented or corrected original Excel data are not converted to csv by mistake and are thus not available the next time they are imported into R. In order to take the path to the data into account when reading it with read_excel(), you can proceed as follows (analogous if your path is relativ to your R working directory), for example: Kurtz <- readxl::read_excel(path = '/DFPfiles/ae/FriendsMonroe/KurtzData.xlsx', sheet = 'name-or-number-of-the-sheet') Additional parameters may be necessary, e.g. to specify whether to skip headers when reading the Excel data. The help page for the function gives valuable hints here: ?readxl::read_excel Besides the R package readxl I have also had very good experiences reading and writing Excel files with the package openxlsx ;) HTH, Rainer Hurling