similar to: Parsing key-value files

Hello, Apologies if this is a stupid question. I googled and skimmed the archives and didn't see anything specific about this. I am documenting an analysis procedure in a DB and I would like to know the specific version number of each package that I use. Is there a standardized way of getting that information out from R, or should I parse it out from the source-code files? Ideally I

Hi all, There must be a really obvious R solution to this, but I can't figure out how to aggregate a list. For instance, if I read.table the following from a file: Val1 Val2 A 3 4 A 5 6 B 4 4 I would like to take the mean (or median) across any/all rows of type "A" to end up with the structure: Val1 Val2 A 4 5 B 4 4 in this case. How would I go about doign that w/o doing a

Hi all, I would like to apply a function to each column of an 2-dimensional array, and store the result in a new 1-dimensional vector. I am not sure how to go about doing that syntatically. For instance, can I use lapply? And, if so, how do I specify which dimension should be used? Also, how do I pre-specify the type of object that will go into the 1-dimensional vector. I'm not sure if

I have a dataframe say: date price_g price_s 0.34 0.56 0.36 0.76 . . . . . . and so on. say, 1000 rows. Is it possible to add two columns to this dataframe, by computing say diff(log(price_g) and diff(log(price_s)) ? The elements in the first row of these columns cannot be computed, but

*** BLURB HERE *** Bean Huo (5): fs/buffer: clean up block_commit_write fs/buffer.c: convert block_commit_write to return void ext4: No need to check return value of block_commit_write() fs/ocfs2: No need to check return value of block_commit_write() udf: No need to check return value of block_commit_write() fs/buffer.c | 24 +++++++-----------------

Hello, In a way similar to speexclient voip example, I want to have a voip application where 3 or more users can interact. This creates the following problems "1. How to playback 2 or more audio streams such that they appear overlayed (parallel)". The audio streams are speex encoded. I have few approaches in mind. 1. Create multiple decoder states and multiple ALSA audio playback

Hi Matt, All, Thanks for looking into this and your suggestions. I compiled the program with -O3 optimization level (clang -O3) on X86_64 target. After your suggestion, i ran the program with iteration of 10000 runs and found that average runtimes are (attaching data collected as well) Forward loop traverse : 2.006 milli seconds Reverse loop traverse : 1.531 milli seconds Yes, i agree that

date <- as.POSIXlt(Sys.time()) #present date for (i in 1:difftime(as.POSIXlt(Sys.Date()),"2007-10-01")) if (date$wday != 0 & date$wday != 6) {print(date);assign("date", (date-86400))} else (assign("date", (date-86400))) I am trying to print dates from present day to a day in the past, but omitting weekends. I am not doing something right, but can't

Hi Vishal, Ruijie, Thanks for your interest in the project. To get started, the first task would be to merge the 5 patches on top of trunk llvm. The list of patches are listed in the project description: http://llvm.org/OpenProjects.html#llvm_mergesim Please create an account in llvm phabricator (reviews.llvm.org) if you haven't already, and put your patches there. Let me know if you have

Hi useR's, Has anyone used the "Lars" package in R before? If so, is there any tutorial (not manual) or worked out example online for this R package that one can go through to figure out how one can use this package with lasso regression? I appreciate any help I can get in this direction. Sincerely, Vishal -- *Vishal Thapar, Ph.D.* *Scientific informatics Analyst Cold Spring

I am trying to download a bunch of files from a server, for which I am using download.file( ) within a for loop. The script is working fine except until download.file hits a URL which has no file, at which point it exits. I want to change this behavior to simple log the failure and maintain state within the for loop and iterate to next. I read about try / tryCatch but am having trouble

Can someone throw light on the following problem I am having with RODBC? There's an Excel file I am trying to read from, it has one sheet named 'nameclass'. Thanks in anticipation. Vishal Belsare > library(RODBC) > con = odbcConnectExcel(file.choose()) > tbls <- sqlTables(con) > tbls TABLE_CAT TABLE_SCHEM TABLE_NAME TABLE_TYPE REMARKS 1

Is there any existing implementation in R/S of : 1] Pincus & Kalman's approximate entropy (ApEn) measure 2] Total Correlation / Multiinformation 3] Information Interaction A search doesn't quite reveal anything, but I'd be keen to not reinvent in case someone has worked on it. Many thanks in anticipation. Best, Vishal Belsare

Hi All, Did anyone else have a problem like this? I am sorry if its a small issue, I seem to not understand what to do to get rid of this error. > Sigma [1] 0.1939025 > MuRest [1] 8.512772 > TauZero [1] 0.1 > curve(qlnorm(x,-TauZero+MuRest, Sigma,lower.tail=F), xlim=c(4000,9000), ylim=c(0,.99),xlab="", ylab="") Warning message: In qlnorm(p, meanlog, sdlog,

I visited http://wiki.centos.org/PackageManagement/Yum/Priorities which tells me to install the package yum-priorities available from extras. I try this and it fails. # yum install yum-priorities Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * addons: mirror.csclub.uwaterloo.ca * base: mirror.csclub.uwaterloo.ca * extras: mirror.csclub.uwaterloo.ca * updates:

Hello list, I have performed a fresh install (fully updated) of squeeze amd64 and installed the xen-linux-system-2.6.32-5-xen-amd64 package with all its dependencies. When I restart and tried to boot the linux-image-2.6.32-5-xen-amd64 (pvops style) kernel on bare-metal my laptop boots fine. When I use the hyper-visor on the system with the same linux-image-2.6.32-5-xen-amd64 kernel, it hangs

Hello list, I have performed a fresh install (fully updated) of squeeze amd64 and installed the xen-linux-system-2.6.32-5-xen-amd64 package with all its dependencies. When I restart and tried to boot the linux-image-2.6.32-5-xen-amd64 (pvops style) kernel on bare-metal my laptop boots fine. When I use the hyper-visor on the system with the same linux-image-2.6.32-5-xen-amd64 kernel, it hangs

Hello everyone I am not sure when this appeared (sometime post R 3.5.0 and after I switched to Mac OS Catalina). I do not think it happens on all platforms (e.g. seems to work on windows). But it seems that tkimage.create() no longer works on a Mac for all png files. (It does work for *some* old png files I have on disk but I have not been able to determine what is different about the

I don't know what has changed with Catalina But I just tried my tk console from the shell command tkcon And got the following error. Here is my shell: $ tkcon dyld: Library not loaded: /usr/local/lib:/opt/X11/lib/libtk8.6.dylib Referenced from: /usr/local/bin/wish Reason: image not found Abort trap: 6 I don't know whether this is a red herring or not, but the

I am using Rails 1.2.3 and Active scaffold 1.1.1 My requirement is to send the export of users data weekly to the admin as email via cron. How can i automate the process of exporting csv and storing it at a place? So that i can pick it from there and attach to the email before sending? -- Posted via http://www.ruby-forum.com/. -- You received this message because you are subscribed to the