similar to: covariance of equal date values

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I have a stock market trading values time series. What's the best way to extract the "last day of month" values. I looked at function window() but doesn't appear suitable for this since it expects regular dates. Thank you. lukas - -- Lukas Kubin lukas.kubin at permonik.com phone: 00420603836180 -----BEGIN PGP SIGNATURE-----

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I would like to code a script which processess all possible combinations of matrix columns. The purpose of such operation is to automatically find best combination of factors (not those factors in mean of R, but explaining factors -- independent variables) received from lm(). The independent variables are present in columns of the matrix. I am not a

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Is it possible to create a time series from existing data frame? One column of that frame contains dates (like "01/01/01") and the second one the values. The period is non-regular (it is not strictly daily nor working-days-daily). Thank you. lukas - -- Lukas Kubin lukas.kubin at permonik.com phone: 00420603836180 -----BEGIN PGP

Hi, I need help with two related issues: 1. I wish to drop repeating text "BST" from the below 'dates' string: [1] "2005-04-01 BST" "2005-04-04 BST" "2005-04-05 BST" "2005-04-06 BST" "2005-04-07 BST" "2005-04-08 BST" "2005-04-11 BST" "2005-04-12 BST" "2005-04-13 BST" "2005-04-14

As a true R-Newbie, I thought I would respond to Zed Shaw's ideas. I think they're all good. I've put comments re the ones which would be critical for me >>>1) An R Cookbook section of the site where people can submit pieces >>>of interesting code that satisfies a need. This would be similar to the >>>Perl/Python/Java Cookbook texts that O'Reilly

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 What are the best tools (models within R) for use in predicting stock market trading values? Currently I'm using the smooth.spline but are there any others used in practice? Do I find the mathematical formulations of R-functions somewhere (I now I could deduct it from the source code algorithms but ...)? Of the smooth.spline() for example? Thank

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I need to read in a dataframe stored in a cvs file. The problem is I don't know how to tell R the first column (in format like "7-Jan-80") is a vector of dates. Could you help me, please? Thanks. lukas - -- Lukas Kubin lukas.kubin at permonik.com phone: 00420603836180 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.5 (GNU/Linux)

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I got the report Coefficients: (1 not defined because of singularities) while trying to get my model's coefficients from lm() What shall I do to avoid it and get the one missing coefficient? Thank you. lukas - -- Lukas Kubin lukas.kubin at permonik.com phone: 00420603836180 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.5 (GNU/Linux)

Hello, I'm wondering how I can merge two featuresets into one. My dataset is two sets of microarray data and it looks like followings: > rawData $v1 TilingFeatureSet (storageMode: lockedEnvironment) assayData: 2197815 features, 59 samples element names: channel1, channel2 protocolData rowNames: LT290677RU_D1_2011-02-16 LT286300LU_D1_2010-07-24 ... LT003990RU_D1_2010-11-04 (59

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I wish to use rsync to synchronize a whole fat32 (MSWindows) partition mounted into a linux system. I run rsync from linux. The problem is rsync synchronizes most of the data even if the data hasn't changed since the original image was made. I used the -avz parameters to do the backup and the same for restoration. Also I've tried just -rvz. It

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I'm getting the rsync error "partial transfer (code 23) at main.c(925)" when restoring a 'rsync-ed' Windows partition from a Linux system. I feel the problem might be caused by the characterset (win-1250) which the files on Windows partition are stored in. Is there any solution to this? Thank you lukas - -- Lukas Kubin phone:

#Hello, #I loaded data using read.table - I needed to convert a row in the data frame to date class: > data V1 V2 V3 V4 1 2008-05-19 2008-04-19 2008-03-21 2008-02-22 2 38.16999817 30.70999908 36.86000061 35.18999863 3 37.47999954 29.95000076 36.45999908 35.36000061 4 37.47999954 30.14999962 36.47000122 35.36000061 5 37.84999847 30.56999969 36.84000015

Hi I need to add an year to and date field in the dataframe. Please help me X Date 1 2008-01-01 2 2008-02-01 3 2003-03-01 Thanks in advance -- View this message in context: http://r.789695.n4.nabble.com/Adding-a-year-to-existing-date-tp4078930p4078930.html Sent from the R help mailing list archive at Nabble.com.

Data into R from Excel csv file xd<-read.csv("court.dates1.txt",as.is=T, header = F) > str(xd) 'data.frame': 5 obs. of 1 variable: $ V1: chr "6/6" "5/27" "5/16" "5/2" ... >xd V1 1 6/6 2 5/27 3 5/16 4 5/2 5 4/29 cdates <- as.Date(xd, format = " %m/ %d") Error in as.Date.default(xd, format = " %m/

Hello together i want to execute different commands that are saved in strings (eg: "d <- 4+7" and some more complicated things). How can i execute/evaluate them. I know i could save them to a temp-file a read this with source. But is there a way without a file in the middle? I know also the 'assign' command but I think it would only the simply cases. thanks and gruess joerg

Hi all This seems like a very easy question, but I have not found a simple answer to it: If you have a dataframe, how to you plot two of then in different colors depending on a third variable? All help appreciated! /Fredrik -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send

Hello everybody, a question that connect to the question of Frederik Karlsons about 'how to stand. betas' With the stand. betas i can compare the influence of the different explaning variables. What do i with the betas of factors? I can't use the solution of JohnFox, because there is no sd of an factor. How can i compare the influence of the factor with the influence of the numeric

How can locate in my program an error of that kind (Error: subscript out of bounds)? -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch

Dear R-freaks, I am new to R and loke to write plots directly to a file with a script in batch-mode. the following error occured: # writing section > x11() Error in x11() : the x11 device has not been loaded Execution halted I do not know what to do! thanks for your help cheers steph -- Linux: the operating system with a CLUE... Command Line User Environment.

Dear R-users I have some doubts about with converting dates... e.g. dates data 23/12/1975 0.8678 03/01/1976 0.8736 28/01/1976 0.765 13/03/1976 0,9654 ... I think that converting these dates can easily my plots... is there a R function to convert these dates to a julian dates and so plot that variables?? The help files as.POSIXlt, POSIXt and others don't aswer my doubts...