John E. Kaprich
2011-Jan-27 16:56 UTC
[R] Problem converting zoo object (daily data) to a timeSeries object
When I try to convert the zoo object to a timeSeries object, which would allow me to utilize Rmetrics packages, I get an error message.> Data<-read.zoo("c:\\DOWUBSPRICING.txt,na.strings="NA",sep="\t",header=T)> is(Data)"zoo"> as.timeSeries.zoo(Data)Error in .local (.Object, . ) Is this happening because I am using daily data? Originally, I was trying to import the data as a timeSeries, but could not overcome problems with the date configuration. I tried to create a zoo object with the intention of converting it into a timeSeries. My apologies if this is too basic a question, but I am new to R and have been struggling with this problem. The object in question contains daily adjusting closing price data. DJP JJA COW 2011/1/21 49.01 64.68 30.97 2011/1/20 48.62 63.78 31.11 . Your help is greatly appreciated!! [[alternative HTML version deleted]]
Gabor Grothendieck
2011-Jan-28 04:50 UTC
[R] Problem converting zoo object (daily data) to a timeSeries object
On Thu, Jan 27, 2011 at 11:56 AM, John E. Kaprich <jkaprich at gmail.com> wrote:> When I try to convert the zoo object to a timeSeries object, which would > allow me to utilize Rmetrics packages, I get an error message. > > > >> Data<-read.zoo("c:\\DOWUBSPRICING.txt,na.strings="NA",sep="\t",header=T) >> is(Data) > "zoo" >> as.timeSeries.zoo(Data) > Error in .local (.Object, . ) > > Is this happening because I am using daily data? Originally, I was trying to > import the data as a timeSeries, but could not overcome problems with the > date configuration. I tried to create a zoo object with the intention of > converting it into a timeSeries. > > My apologies if this is too basic a question, but I am new to R and have > been struggling with this problem. > > The object in question contains daily adjusting closing price data. > > ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?DJP ? ? ? ? JJA ? ? ? ? ?COW > > 2011/1/21 ? ? ? ? ? ?49.01 ? ? 64.68 ? ? 30.97 > 2011/1/20 ? ? ? ? ? ?48.62 ? ? 63.78 ? ? 31.11 > > .There are a different number of headings and columns so the dates are being interpreted as row names. Try this: Lines <- " DJP JJA COW 2011/1/21 49.01 64.68 30.97 2011/1/20 48.62 63.78 31.11" library(zoo) DF <- read.table(textConnection(Lines)) z <- zoo(DF, rownames(DF)) -- Statistics & Software Consulting GKX Group, GKX Associates Inc. tel: 1-877-GKX-GROUP email: ggrothendieck at gmail.com
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