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Writing a function, want a string argument to define the name of the excel sheet to be called

5 messages · AOLeary, Bryan Hanson, R. Michael Weylandt

#
My question is this: is there a way I can make one of the arguments of the
function be a string the user can enter, and then have that be the excel
filename? ie,

foo <- function(x,y,NAME){

#make a matrix with x rows and y cols
M <- matrix(nrow=x,ncol=y)
#write the matrix
write.table(M, file = "result.csv",append=TRUE, sep = ",") 
}

I've had a look but I couldn't find help for this particular problem and
it's one I'd like to solve, so I can change make several excel files to
solve the analysis my actual function does.

Thank you very much,
Aodh?n

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#
Sure, change your example as follows and then you can pass the name properly:

foo <- function(x,y,NAME = "filename.csv"){

#make a matrix with x rows and y cols
M <- matrix(nrow=x,ncol=y)
#write the matrix
write.table(M, file = NAME,append=TRUE, sep = ",") 
}

Bryan
****************
Prof. Bryan Hanson
Dept of Chemistry & Biochemistry
DePauw University
Greencastle IN 46135 USA
academic.depauw.edu/~hanson/deadpezsociety.html
github.com/bryanhanson
academic.depauw.edu/~hanson/UMP/Index.html
On Dec 1, 2011, at 8:43 AM, AOLeary wrote:

            
#
Just a heads up -- I don't think your code will work with an actual
.xls(x) file, only .txt, .csv, etc (aka, plain text files). I may be
wrong about that, but if you actually need to work with Excel files
directly you will need an additional package.

Michael
On Thu, Dec 1, 2011 at 9:10 AM, AOLeary <aodhanol at gmail.com> wrote: