On Thu, Dec 23, 2010 at 8:07 AM, Amy Milano <milano_...@yahoo.com> wrote: > Dear R helpers! > > Let me first wish all of you "Merry Christmas and Very Happy New year 2011" > > "Christmas day is a day of Joy and Charity, > May God make you rich in both" - Phillips Brooks > > ## > ---------------------------------------------------------------------------------------------------------------------------- > > I have a process which generates number of outputs. The R code for the same > is as given below. > > for(i in 1:n) > { > write.csv(output[i], file = paste("output", i, ".csv", sep = ""), row.names = > FALSE) > } > > Depending on value of 'n', I get different output files. > > Suppose n = 3, that means I am having three output csv files viz. > 'output1.csv', 'output2.csv' and 'output3.csv' > > output1.csv > date yield_rate > 12/23/2010 5.25 > 12/22/2010 5.19 > ................................. > ................................. > > > output2.csv > > date yield_rate > > 12/23/2010 4.16 > > 12/22/2010 4.59 > > ................................. > > ................................. > > output3.csv > > > date yield_rate > > > 12/23/2010 6.15 > > > 12/22/2010 6.41 >
In the development version of zoo you can do all this in basically one read.zoo command producing the required zoo series: # chron's default date format is the same as in the output*.csv files library(chron) # pull in development version of read.zoo library(zoo) source("http://r-forge.r-project.org/scm/viewvc.php/*checkout*/pkg/zoo/R/read.zoo.R?revision=813&root=zoo") # this does it z <- read.zoo(Sys.glob("output*.csv"), header = TRUE, FUN = as.chron) as.data.frame(z) or data.frame(Time = time(z), coredata(z)) can be used to convert z to a data frame with times as row names or a data frame with times in column respectively (although you may wish to just leave it as a zoo object so you can take advantage of zoo's other facilities too). -- Statistics & Software Consulting GKX Group, GKX Associates Inc. tel: 1-877-GKX-GROUP email: ggrothendieck at gmail.com ______________________________________________ R-help@r-project.org mailing list 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.