similar to: Date Not Staying in Date Format

Hi All, I'm looking for ways to compute aggregate statistics (with the aggregate function) but with an option for sorting and selecting a subset of the data frame. For example, I have would like to turn this : aggregate(myDataframe$TargetValue,list(SomeFactor = myDataframe$SomeFactor),mean) into something like aggregate(myDataframe$TargetValue,list(SomeFactor =

Dear list, just to put it in a simple way: i read.csv from csv file to create a gdata then, create array gdata34 however, when making a loop for assigning gdata34[1,m]<-gdata[m,4], this is what happen gdata[1,4] 's real value is 10354, however, the gdata34[1,4] turns to be 883 then i checked the type: gdata[1,4] is integer, while gdata34[1,4] is double. Can any one give me some help

Hi R useRs: How can I generate a random sample from Maxwell Distribution in C language? Since I know the function rmaxwell {VGAM}, I tried the function r2c {r2c}. But I still cannot find the source code. Thanks for your kind help. RegaRds, 2010-03-12 Randel [[alternative HTML version deleted]]

Dear all, I was hoping someone could help with a ggplot question. I would like to generate a faceted bar chart, but missing data are causing problems. g<-structure(list(Date = structure(c(11322, 11687, 12052, 11322, 11687, 12052, 11322, 11687, 12052, 11322, 11687, 12052), class = "Date"), variable = c("Govt Revenues to GDP", "Govt Revenues to GDP",

I want to plot quantitative data as a function of three two-level factors. How do I group the bars on a barplot by level through labeling and spacing? Here <http://www.thomaslevine.org/sample_multiple-factor_barplot.png>'s what I'm thinking of. Also, I'm pretty sure that I want a barplot, but there may be something better. Tom [[alternative HTML version deleted]]

Hi ALL, Recently I confronted with a error in using package ProDenICA, when let k<p (exactly the example code with k=1, http://finzi.psych.upenn.edu/R/library/ProDenICA/html/ProDenICA.html), Error in solve.default(V, W) : 'b' must be compatible with 'a' I have examined the code of function ProDenICA(), but could not find the reason. And how large is the sample size N

Hello all I have a big data frame and I regularly want to break it down into subsets, calculate some new data, and add it back to the data frame. At the moment my technique seems a bit ugly and embarrassing. Something like: result <- by(mydata, mydata$some_factor, function (x) { # do something to create a vector v with length(v) == nrow(x) return(v) }) # now result has a big list, argh...

Hello all, I have generated a principal components regression model using the pcr() function from the PLS package (R version 2.12.0). I am getting a "non-conformable arguments" error when I try to use the predict() function on new data, but only when I try to read in the new data from a separate file. More specifically, when my data looks like this #########training data

Thanks to Brian Ripley, Gregory Warnes, and Dennis Murphy for considering my problem about "NA" in character strings. The nub of the issue seems to be that you can not have a string with "NA" in it in a character vector in R without it being intrepreted as meaning NA (i.e., not available). The only work-arounds involve renames of various sorts. Perhaps this is more appropriate

There seems to be an error in the summary() function when applied to "ts" class objects. The results of a call to summary( ), on the R "ts" data set USAccDeaths , reports the wrong value for Max. The value reported by the summary function is 11320. The max( ) function returns the correct value 11317, the July 1993 value. Coercing the data to a data.frame and calling summary

I got a system that is hung, unable to do most unix commands like ps/who etc... I did: dtrace -c /usr/bin/ps -n ''pid$target::open*:entry {printf("%s %s",execname,copyinstr(arg0)); }'' and it hangs here: 7 65277 open:entry ps /proc/19729/psinfo 7 65277 open:entry ps /proc/11687/psinfo ^C So, I tried to kill -9 11687,

Hi Jim I am trying to prepare a bed file to load as accustom track on the UCSC genome browser. I have a data frame that looks like the one below. > x V1 V2 V3 1 chr1 11255 55 2 chr1 11320 29 3 chr1 11400 45 4 chr2 21680 35 5 chr2 21750 84 6 chr2 21820 29 7 chr2 31890 46 8 chr3 32100 29 9 chr3 52380 29 10 chr3 66450 46 I would like to insert the following 4 lines at the beginning:

Looking at: http://appdb.winehq.org/objectManager.php?sClass=application&iId=10591 What are the steps to install this application? Yes, it's a garbage application, but I'd like to at least give it a go. Looks like msiexec apparently isn't the right approach. Should that be through wcmd instead? thufir at ARRAKIS:~/.wine/drive_c$ thufir at ARRAKIS:~/.wine/drive_c$ msiexec

https://bugzilla.samba.org/show_bug.cgi?id=10226 Summary: fatal_unsafe_io_error and the version it reports Product: rsync Version: 3.1.0 Platform: All OS/Version: All Status: NEW Severity: normal Priority: P5 Component: core AssignedTo: wayned at samba.org ReportedBy: Martin.vGagern at

https://bugzilla.samba.org/show_bug.cgi?id=12417 Bug ID: 12417 Summary: Sametimes currupted file after disconnect Product: rsync Version: 3.1.2 Hardware: x64 OS: All Status: NEW Severity: major Priority: P5 Component: core Assignee: wayned at samba.org Reporter:

Dear r-users,   I have daily rainfall data from 1971 to 2000.  I would like to extract november and december data only.  I would also like to do column bind for november and december, therefore I would like to delete 31 December from december data so that the length of november and december are the same.  Hope somebody can help me.  I tried this below:   > kuantan.dt.1 <-

Changing the subject line for good ... On Thu, Apr 7, 2011 at 8:58 AM, Lamar Owen <lowen at pari.edu> wrote: > On Thursday, April 07, 2011 11:23:51 AM Brunner, Brian T. wrote: >> AIUI: In previous releases, RH distributed source + patches. ?Starting >> 6.0 RH releases patched source. ?This makes backing out a patch, or >> backporting patches from future development in

Dear list I would like to compare two measurements of disease severity (M1 and M2), one of the is continuous (M1 ranging from 1 to 10) and the other is ordinal (M2 takes Low, Medium, high and very high). Do you think is ok to use cor() function to test whether the two agree, i.e correlate? I am afraid that if I set M2 to 1,2,3 and 4, the function cor() will take them as continuous and

using file_column plugin, if I upload IMG0001.JPG, I get files similarly named IMG0001-thumb.JPG, etc. but if I upload img00002.jpg, I get files img00002-thumb.jpg, etc. This is tacky in terms of my counting on a consistency when implementing views. My inclination is to start hacking away at this section of file_column.rb: class PermanentUploadedFile < RealUploadedFile # :nodoc: def

So, I'm noticing that when Asterisk executes an AGI script, that the AGI script keeps running until the call is complete. Is there any way to have the script terminate when the call is answered? Also noticed that when user makes a call to user B, if user B hangs up the call, then Asterisk returns a result code. If user A hangs up the call, a result code is not returned. Why? Doug