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I am trying to compute the periodicity of a time series. I would like to know which function in R does it. Also, how do I plot a Enright / Chi-square periodogram using R ? ( Enright, J.T., 1965, Journal of Theoret. Biol. 8,426-468) Greatly appreciate your help. Thanks in advance, Sukhaswami Malladi *************************************************************************** The contents

For the r script below >datestr <- "01/01/2004" >as.POSIXct(as.Date(datestr, "%d/%m/%Y")) I get the following output "2003-12-31 18:00:00 Central Standard Time" Why is the date a day before. I guess its something to do with the time, but is there a way to get it to return 2004-01-01 instead? Thanks in advance... -Sandeep [[alternative HTML version

...c("date") does not work sapply(d, class) d$CDATE <- as.character(d$CDATE) sapply(d, class) dbExecStatement(ps,d) Error in oraExecStatement(ps, data, ...) : RS-DBI driver: (ORA-01861: literal does not match format string ) Thanks for your help in advance, Swami (smalladi at lexgen.com) ----------------------------- Correspondence with David James ----------------------- Dear David, Thanks for your kind reply. I did what you suggested, coerced d into a character vector. Now I get an Oracle error - d <- data.frame(CDATE = "TO_DATE('2004-03-10 10:12:00','...

...39;red', 'green'), pch=c(1,4,2)) If you change the 72 to 75 the legend is plotted outside the plot frame. Please read the help files carefully and also "An Introduction to R" to learn R's syntax. -- Bert -----Original Message----- From: Ghosh, Sandeep [mailto:sghosh at lexgen.com] Sent: Thursday, June 30, 2005 3:43 PM To: Berton Gunter Subject: plot legend outside the grid Thanks for the pointers... I managed to get everything to look and feel the way I want except for the legend to plot outside the grid... Thanks for the note on the par, but I'm not able to it t...

Dear List, What is the way in R to plot a graph having date time (e.g. format 12/31/2002 13:12) in the x axis and numerical value (e.g. temperature) on the Y-axis ? I could not get 'plot()' to do this as X axis values are non-numeric. 'bwplot()' sorts the date values and thereby changes the order of the dates and of Y. The date/time values have to be shown on the X-axis as tick

R-help, Could someone in the list write as to what is the R function to perform repeated measures ANOVA and post-hoc tests ? Thanks in advance, swami *************************************************************************** The contents of this communication are intended only for the addressee and may contain confidential and/or privileged material. If you are not the intended recipient,

Running R 1.9.1 under red hat 2.1 version When I try to generate an image, we get an error as in the following plot(rnorm(100)) Error in PS(file, old$paper, old$family, old$encoding, old$bg, old$fg, : unable to start device PostScript In addition: Warning message: cannot open `postscript' file argument `Rplots.ps' If anyone can throw some light or any pointers into why we are

I want to change the way the plot is appearing in the barchart .. testdata <-

Hi All, I have a quick question and any help is greatly appreciated. For the following data when I try to produce the image using xyplot function in lattice package, the key has 4 rows instead of 2. Can anyone tell me what I'm doing wrong and what is the way to fix the problem. Here the code that I'm running studyData <- as.data.frame(t(structure(c( "A",0,4.477,

R-help list, I ported some R code from MS Windows PC to sun-solaris. Both do queries on the same MySQL database. PC version of R is 1.6.1 and solaris version is 1.6.0. I use RMySQL_0.5-0 (on solaris) and RODBC 1.0-1 on PC to connect to MySQL. The PC version took about 65 mins. to run wheras the Solaris (SunOS 5.7) version took 375 mins. (> 6 hrs). R and RMySQL are resident on the same host

Happy New Year to all in the list! I am trying to issue an SQL query to a database from R using RODBC (on Windows). The data source file is on my PC hard disk : C:\Program Files\ODBC\sql.dsn The "\" character does not get interpreted properly in R - it is removed from the file-spec string or if I specify "\\" it appears as such with a syntax error in odbcConnect(dsn,

All When I read data into an R variable x using RODBC command: x <- sqlQuery(channel,"select a, b from tabl",as="data frame") and view x, I get 3 columns the first one being the index of the rows in x. What options do I use in sqlQuery so as not have the index in x ? How do I get rid of the index otherwise. For some functions like princomp (and boxplot) for

For the following code is there a way to make the jitter all line up horizontally, instead of them being just randomly spread around a value. So for ex if there are multiple values at 63 for genotype wt then all the values should be plotted on the same y value of 63 but spaced apart by a certain factor or noise.. library(lattice); dataFrame <- as.data.frame(t(structure(c( 64,'wt',

Hi All, For the following code, I'm not sure why the error bars are appearing horizontal. Can someone please tell me how to fix the problem. testdata <-

-----Original Message----- From: Ghosh, Sandeep Sent: Thursday, June 30, 2005 5:43 PM To: 'Berton Gunter' Subject: plot legend outside the grid Thanks for the pointers... I managed to get everything to look and feel the way I want except for the legend to plot outside the grid... Thanks for the note on the par, but I'm not able to it to plot outside the plot grid.. dataFrame <-

Hi All.. Have a question.. For the following r code testdata <- as.data.frame(t(structure(c( "1/1/04","LV1",3.8,2,87, "2/1/04","LV1",3.2,3,28, "3/1/04","LV1",3.4,3,88, "4/1/04","LV1",3,2,26, "5/1/04","LV1",3.8,2,87, "6/1/04","LV1",3.2,3,28,

For the following code below, the x-axis ticks are 1,2,3,4,5,6,7 when I was expection them to be 1,2,8,9,10,11,12. Please help me figure out where is the mistake. library(lattice) testdata <- as.data.frame(t(structure(c( 1,2005,9.24,6.18,634, 2,2005,8.65,6.05,96, 8,2004,6.81,6.51,16, 9,2004,9.0,7.29,8, 10,2004,8.84,6.18,524, 11,2004,8.54,6.35,579, 12,2004,9.97,6.3,614, 12,2005,8.75,5.84,32,