search for: zoo

Hi, Having a matrix F.zoo (6575,189) with NA's in some columns I'm trying to extract from each column the percent of days within an specific range, so I've wrote this procedure: length(subset(F.zoo[,86],(F.zoo[,86]>=5) & (F.zoo[,86]<= 9)))/(length(F.zoo[,86])-length(subset(F.zoo[,86],is.na(F.zoo[,8...

require( zoo ) inp <- c( 5, 9, 4, 2, 1 ); m <- zoo( cbind( inp ), as.Date("2003-02-01") + (0:(length(inp)-1))); dim( m ) # [1] 5 1 dim( m[1,,drop=FALSE] ) # [1] 1 1 - ok dim( lag( m, -1 )) # [1] 4 1 - ok dim( rbind( m[1,,drop=FALSE], lag(m,-1) )) # NULL - converted from zoo matrix to zoo vecto...

Hi, I have a csv file with different datatypes: 2009-01-01, character1, 10, 20.1 2009-01-02, character2, 11, 21.1 (I have attached the file to this post) I read this file with read.zoo as I want a zoo/xts timeseries: > t = read.zoo("./data.txt", sep=",", dec = ".", header=FALSE) If I look at the zoo data all integer/numeric columns are read as character: > str(t) ?zoo? series from 2009-01-01 to 2009-01-02 Data: chr [1:2, 1:3] " characte...

We try the following: search() as.Date(1) zoo:::as.Date.numeric under three circumstances: 1. on a fresh session 2. after issuing library(zoo) noting that as.Date.numeric is provided by zoo 3. after detaching zoo as.Date(1) fails on #1 but succeeds in #2 and #3. Should it not fail in #3 since zoo was detached? Is this how its supposed to...

Using: Mac OS 10.7.2 R version 2.13.2 I cannot load the zoo package. The install runs fine but when trying to load it i get the following error: /Error in dyn.load(file, DLLpath = DLLpath, ...) : unable to load shared object '/Users/ntyhurst/Library/R/2.13/library/zoo/libs/i386/zoo.so': dlopen(/Users/ntyhurst/Library/R/2.13/library/zoo/libs/i...

I have a zooreg object and I want to be able to generate a value for seasons and 11-day composites paste it onto my zoo data frame, along with year, month and days. Right now I have the following to work from: eg. dat.zoo.mdy <- with(month.day.year(time(dat.zoo)), cbind(dat.zoo, year, month, day, quarter =...

Dear R Users and maintainers of packages zoo and timeSeries, I believe there is a recently introduced inconsistency between timeSeries and zoo which is causing a problem with rbind. I had previously reported that I was having problems with rbind in the following code: library(zoo) foo<-zoo(1,order.by=as.Date("2007-10-09")) b...

Hi all, I am using the zoo package to plot time series. I have a problem with formatting the axes. my zoo object (z) looks like the following. c1 1992-01-10 21 1992-01-17 34 1992-01-24 33 1992-01-31 41 1992-02-07 39 1992-02-14 38 1992-02-21 37...

Dear R-helpers, It seems to me that a character zoo cannot be coerced to a numeric zoo. Below is a minimal example. Can someone tell me what I have done wrong? > z<-zoo(1:4,order.by=1:4) > coredata(z)<-as.character(coredata(z)) > str(z) ‘zoo’ series from 1 to 4 Data: chr [1:4] "1" "2" "3" "4"...

Dear useRs, a new and much improved version of the zoo package for indexed totally ordered observations (such as irregular time series) is available from CRAN. It allows indexing observations with time/index vectors of arbitrary class and extends many of the standard generic functions also available for "ts" objects. Additionally, it allows c...

Dear useRs, a new and much improved version of the zoo package for indexed totally ordered observations (such as irregular time series) is available from CRAN. It allows indexing observations with time/index vectors of arbitrary class and extends many of the standard generic functions also available for "ts" objects. Additionally, it allows c...

Hi, I let xzoo be an empty object: > xzoo<-{} and I have an existing zoo object x1zoo_f. I would like to combine the two to make a new zoo object, and continue doing so in a loop, which is not shown here. However, when I type > xzoo<-cbind(xzoo, x1zoo_f) An error message emerges Error...

library(zoo) library(chron) t1 <- chron("1/1/2006", "00:00:00") t2 <- chron("1/31/2006", "23:45:00") deltat <- times("00:15:00") tt <- seq(t1, t2, by = times("00:15:00")) d <- sample(33:700, 2976, replace=TRUE) sin.zoo <- zoo(d,tt)...

Hello; I am trying following but getting a warning message : Warning in rbind.zoo(...) : column names differ, no matter whatever I do. Also I do not want to specify column names manually, since I am just writing a wrapper function around getSymbols to get chunks of data from various sources - oanda, dividends etc. I tried giving col.names = T/F, header = T/F and skip = 1 but n...

Readers, I am trying to use the zoo package with an array of data: file1: hh:mm:ss 1 hh:mm:ss 2 hh:mm:ss 3 hh:mm:ss 4 file2: hh:mm:ss 11 55 hh:mm:ss 22 66 hh:mm:ss 33 77 hh:mm:ss 44 88 I wanted to merge these data set so I tried the following commands: library(chron) library(zoo) z1<-read.zoo("path/to/file1.csv",head...

...It would be really nice if someone can point out what I am doing wrong with this part, or somewhere else that I am coding wrong. Thanks, Full code: ########### TableAP <- read.csv("AnnualPanel.csv") TableAP <- data.frame(TableAP) TableAP nrow (TableAP) install.packages("zoo") require(zoo) Lagpolity4AP1 <- lag(zoo(TableAP$polity4), -1) Lagpolity4AP2 <- lag(zoo(TableAP$polity4), -2) Lagpolity4AP3 <- lag(zoo(TableAP$polity4), -3) Lagpolity4AP4 <- lag(zoo(TableAP$polity4), -4) Lagpolity4AP5 <- lag(zoo(TableAP$polity4), -5) LaglrgdpchAP1 <- lag(zoo(...

I have read ?zoo but am not sure how to relate the parameters (x, order.by, frequency, and style) to my data.frame. The structure of the data.frame is 'data.frame': 11169 obs. of 4 variables: $ stream : Factor w/ 37 levels "Burns","CIL",..: 1 1 1 1 1 1 1 1 1 1 ... $ sampdate: Date...

I am trying to get monthly means for a daily data series using zoo(). I have found an odd problem, that seems to be caused by zoo()'s handling of leap years. Here's my R script with 2 methods (freq=365, 366) for aggregating the daily data to monthly series: library(zoo) J_link <- "http://www.ijis.iarc.uaf.edu/seaice/extent/plot.csv" JAXA_da...

The problem now is it looks like my read.zoo isn't working. Sorry for sort of double posting. Someone please assist if you have time with my read.zoo command line. my data is as just below this line, a time stamp and a real number with a comma sep. 10/11/2011 23:00:06,432.12 z=read.zoo("Kevin-0-comma-ITPower.txt",...

Dear all, I have an error message, when I try to convert a zoo object (called test) to ts (on R 2.4.0, Package zoo version 1.2-1, Windows XP) > test 1994-05-10 1994-06-09 1994-07-09 0.0024943889 0.0024881824 0.0006955831 > str(test) atomic [1:3] 0.002494 0.002488 0.000696 - attr(*, "index")=Class 'Date' num [1:3] 8895 8925...