similar to: Inconvenient behavior of as.data.frame() for lists without names

Well here is one more brain-teaser related to assigning stuff into a list of list. What if I need to create a new list of empty lists? I have actually got a solution to this problem: l = list(list()) for ( i in sequence(length-1) ) { l = list(unlist(l,recursive=FALSE), list()) } But it is not very neat to do this in a loop. Are there any cuter ways to do this?

I'm using read.delim to successfully read in tab delimited data, but some columns' values are comma seperated, reflecting the fact that user chose a few answers on a multi-select question. I understand that each answer is its own category and so could be represented as a seperate column in the data set, but I'd like the option of reading in the data column, and converting it to a

Hi all, I just noticed (the hard way of course) that when a query returns 0 rows, the columns in the resulting data.frame get dropped as well. See the following example code (where conn is an active connection to an SQLite db): > dbGetQuery(conn, "select 1 as hey, 2 as ho where 1") hey ho 1 1 2 > dbGetQuery(conn, "select 1 as hey, 2 as ho where 0") data frame

Hi all, I would like the following code to work, but it doesn't: library(DBI) library(RODBC) m <- dbDriver("RODBC") # Example for dbConnect(DBI), causes error m <- dbDriver("ODBC") # Example for DBIDriver-class(DBI), causes error The errors are: Error in do.call(as.character(drvName), list(...)) : could not find function "RODBC" (substitute

I have made some more research and found out the following .. thor:~# df -i Filesystem Inodes IUsed IFree IUse% Mounted on -[cut]- /dev/mapper/vgraid-data 475987968 227652 475760316 1% /data thor:~# strace e2defrag -r /dev/vgraid/data -[cut]- mmap2(NULL, 1903955968, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x46512000 (delay 15 seconds

Full_Name: Magnus Torfason Version: 2.7.0 OS: Windows Vista Submission from: (NULL) (128.59.140.167) Each time a string is edited in the data editor (on Windows at least), any pairs of backslashes (an escaped backslash) are duplicated on each edit of the string. Note that one must actually double click the value for the bug to show up. Behavior/Replication: > # Create data frame >

Hi all, I'm trying to print a number of wireframe plots (generated using the lattice package), and I want them to appear in a two-by two matrix along with some other (standard) plots. In other words I am trying to create a subplot or tiled plot that works for wireframes. I've tried the methods discussed in: http://tolstoy.newcastle.edu.au/R/e2/help/07/07/21238.html but while they work

Hi all, I'm getting the following warnings inside a loop: Warning messages: 1: In calc.measures(g, 1, i) : Reached total allocation of 1535Mb: see help(memory.size) 2: In calc.measures(g, 1, i) : Reached total allocation of 1535Mb: see help(memory.size) Usually, when I see these warnings, they are accompanied with an error message (Error: cannot allocate ...), but not in this case.

Hi all, I have some long-running code that I'm trying to profile. I am seeing a lot of time spent inside the <Anonymous> function. Of course, this can in fact be any of several functions, but I am unable to see how I could use the information from Rprof.out to discern which function is taking the most time. An example line from my Rprof.out is: rbernoulli <Anonymous>

Currently a power failure or other hard crash can cause lld leave a temporary file around. The same is true for other llvm tools. As an example, put a breakpoint in Writer.cpp:236 ("writeBuildId()") and restart the run a few times. You will get t.tmp43a735a t.tmp4deeabb t.tmp9bacdd3 t.tmpe4115c4 t.tmpeb01fff The same would happen if there was a fatal error between the

i am using rails -v 3.0.7.when i tried "rails generate scaffold try name:string number:decimal" , it gave following error message invoke active_record /usr/lib/ruby/1.8/yaml.rb:133:in `load'': syntax error on line 7, col 2: ` pool: 5'' (ArgumentError) from /usr/lib/ruby/1.8/yaml.rb:133:in `load'' from

Hi, first of all, apologies if this isn't the right mailing list but it was the best I could find. If you know a better mailing list, please tell me. Today I tried to defrag one of my filesystems. It's a 3.5T large filesystem that has 6 software-raids in the bottom and then merged together using lvm. I was running ext3 but removed the journal flag with thor:~# tune2fs -O ^has_journal

I''ve been working with Rails for 3 Months now, but haven''t experienced this problem until now. I''m currently working through Micharl Hartls Tutorial and everything worked fine so far, but suddenly (chapter 11) I can nolonger create Migration Files. when entering "rails g model Name field1:type" I don''t get the usual "create db/migrate...."

Hi all, I cannot figure out how to correctly use the with_output_buffer helper method (located in ActionView::Helpers::CaptureHelper) inside a custom FormBuilder. Below follows a simplified example. I''m trying to achieve the following behavior in an ERB as suggested in the form_for helper docs in the Rails source: ========== <%= form_for @object, :builder => MyFormBuilder do

Are exec resources triggered by notify events supposed to be run once for every event received or only run once per run irregardless of the number of resources that notified it? It seems to me that it gets run twice no matter how many resources triggered it. consider the following class: class dhcp { $prefix = "/usr/local/etc/dhcpd" $dhcpd_conf = "$prefix/dhcpd.conf"

Hi All, I am getting the following err while looking up for this command # puppet-module search iptables sudo puppet-module search iptables ===================================== Searching http://forge.puppetlabs.com ------------------------------------- /usr/lib/ruby/1.8/net/http.rb:560:in `initialize'': Connection timed out - connect(2) (Errno::ETIMEDOUT) from

I have a test environment. Three node HCI cluster. CentOS8 build. Gluster as file system with standard cockpit deploy of HCI. Converted to CentOS Streams which seemed to go fine. Did a yum update and no issues. Did a reboot.. and now engine will no longer start. So I can no longer start my Virtual machines. I posted as bug https://bugzilla.redhat.com/show_bug.cgi?id=1911910 I posted to

Im a new user - I just installed rails, following directions here: http://rubyonrails.org/download however, when it came time to make a rails new path/etc/etc I get this message: Can''t initialize a new Rails application within the directory of another, please change to a non-Rails directory first. The only complication during the download was that I had to upgrade from version 1.8.6 to

Hello, I have written an AGI script for asterisk that uses google translate for text to speech synthesis. It supports a variety of different languages, local caching for the voice data and wideband audio. The voice in most languages is female and the quality of the synthesized speech is very high. More info about the script can be found here: http://zaf.github.com/asterisk-googletts/ the first

Hi, How can I strip + from the front of the caller ID? I have tried this: exten => s/_+X.,1,Set(CALLERID(name)=${CALLERID(name):1}) But it is not working. Szasz Szabolcs -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20100114/a3f18781/attachment.htm