I tried and this error popped: z1 <- read.zoo(textConnection(Lines1), header = TRUE, format = fmt) Error in textConnection(Lines1) : invalid 'text' argument
Also library(chron) returns error as it is an invalid library. Could you help? On 7/7/10, Gabor Grothendieck [via R] <ml-node+2280348-527941373-309...@n4.nabble.com> wrote: > > > > On Tue, Jul 6, 2010 at 8:26 PM, Gabor Grothendieck > <ggrothendi...@gmail.com> wrote: >> On Tue, Jul 6, 2010 at 6:18 PM, raghu <r.raghura...@gmail.com> wrote: >>> >>> I have two files with dates and prices in each. The number of rows in >>> each of >>> them will differ. How do I create a new file which contains data from >>> both >>> these files? Cbind and merge are not helpful. For cbind because the rows >>> are >>> not the same replication occurs. Also if I have similar data how do I >>> write >>> a vlookup kind of function? I am giving an example below: >>> Say Price1 file contains the following: >>> Date Price >>> 2/3/2010 134.00 >>> 3/3/2010 133.90 >>> 4/3/2010 135.55 >>> >>> And say price2 contains the following: >>> Date Price >>> 2/3/2010 2300 >>> 3/3/2010 3200 >>> 4/3/2010 1800 >>> 5/3/2010 1900 >>> >>> I want to take both these data together in a single file, and take the >>> smaller vector (or matrix or dataframe??..i am new to R and still >>> confused >>> with the various objects) which is file1 (because it contains fewer rows >>> ) >>> and vlookup prices in the second file basedon the dates on file1 and >>> write >>> three columns (date, price from 1 and price from2) in a new file. How do >>> i >>> do this please? >>> >> >> Try this and for more read the three vignettes (pdf documents) in the >> zoo package and also read the R News 4/1 article on dates and times: >> >> Lines1 <- "Date Price >> 2/3/2010 134.00 >> 3/3/2010 133.90 >> 4/3/2010 135.55" >> >> Lines2 <- "Date Price >> 2/3/2010 2300 >> 3/3/2010 3200 >> 4/3/2010 1800 >> 5/3/2010 1900" >> >> library(zoo) >> library(chron) >> z1 <- read.zoo(textConnection(Lines1), header = TRUE, FUN = chron) >> z2 <- read.zoo(textConnection(Lines2), header = TRUE, FUN = chron) > > I originally assumed that the dates were the usual month/day/year but > looking at it again I suspect they are day/month/year so lets use Date > class instead of chron replacing the last three statements with: > > fmt <- "%d/%m/%Y" > z1 <- read.zoo(textConnection(Lines1), header = TRUE, format = fmt) > z2 <- read.zoo(textConnection(Lines2), header = TRUE, format = fmt) > > > > > >> merge(z1, z2) # keep all rows in each >> merge(z1, z2, all = FALSE) # keep only rows in both >> merge(z1, z2, all = c(TRUE, FALSE)) # keep all rows in z1 >> merge(z1, z2, all = c(FALSE, TRUE)) # keep all rows in z2 >> > > ______________________________________________ > 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. > > > ______________________________________ > View message @ > http://r.789695.n4.nabble.com/Adding-two-files-into-one-and-vlookup-tp2280277p2280348.html > To start a new topic under R help, email > ml-node+789696-608741344-309...@n4.nabble.com > To unsubscribe from R help, click > (link removed) > -- 'Raghu' -- View this message in context: http://r.789695.n4.nabble.com/Adding-two-files-into-one-and-vlookup-tp2280277p2281017.html Sent from the R help mailing list archive at Nabble.com. [[alternative HTML version deleted]] ______________________________________________ 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.
