On Sep 21, 2010, at 6:14 PM, Tucson August wrote:
Dear list,
How to convert a character to a filename?
Filenames are character mode so that shouldn't be a problem.
such as:
x <- "height" # "height" here is actually a name of a colume in a
data
frame
So you need to learn how to refer to column and that's not it.
Try:
plant["height"]
filename <- paste("plant,x") # Would produce "plant,x" ... not
useful
write.table function takes a dataframe or matrix or something that can
be coerce to one of those.
write.csv (data, file="C:/plant/filename.csv ) # having trouble
with this
^^
You forgot the closing quotes ... unless that is you expected the "c:/
plant/" and the ".csv" to be automatically prepended and appended and
the filename you created to be substituted. That's not going to happen
without some greater effort. You can smush together character values
like this:
paste("c:/path/plant/", filename, ".csv", sep="")
statement, how to 'write' the filename here?
All I want from above is to write 'data' to a file named
plantheight.csv
(the ultimate goal is to use a loop to transfer each column of a
data frame
into a separated file named from that column
A column name may not be a first class object.
e.g. to create many files with different names but the names are all
like:
plantheight.csv, plantweight.csv, and height, weight.., are column
names of
a data frame)
Did you read the Posting Guide that suggested a reproducible example?
Thank you!
Tuc Aug.
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David Winsemius, MD
West Hartford, CT
______________________________________________
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
