On May 24, 2012, at 7:45 PM, Minerva Mora wrote:
Hi, I apologize for my english.
I´m trying to read a file, but the name of this file changes every
day, for
example: today is May 24, 2012
bonos<- read.table(*20120524*.csv", header=TRUE, sep="\t")
yr = "2012"
mo = "01
dt = "25"
filnam =paste("C:/Bonos/" , yr, mo, dt,sep="")
bonos <- read.table(filnam, header=TRUE, sep="\t")
So, tomorrow I want to read the file again, but i don´t want to put
the date
by myself, i want this automatically. I know that if a put day() this
instruccion gives me the date.
My problem is, I don´t know how to concatenate these:
-"C:/Bonos/
-the date
-.csv"
I tried this:
bonos<- read.table(cat(cit,dia,extension), header=TRUE, sep="\t")
where
--cit is *"\"C:/Bonos/"*
--dia is *dia<-format(today, "%Y%m%d")*
--extension is *extension<-".csv\""*
but i have this problem:
"C:/Bonos/ 20120524 .csv"*Error in read.table(cat(cit, dia,
extension),
header = TRUE, sep = "\t") : * * 'file' must be a character string or
connection*
What can i do?
Thanks!
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