similar to: ActiveRecord Type issue -- What am I missing?

Hi, I was wondering what happens, if I use polymorphism in combination with created_at and modified_at? Lets say I have 3 models, which all have the attributes created_at and modified_at, then how will they updated? Will changes in the child affect the "modified_at" of the parent? Will a "child.attribute_at()" yields the value of the child or the parent? Given the child,

Hello there, this is probably a very simple problem but I''m stuck. I''m following the Login generator tutorial from rubyonrails. It''s all worked fine so far. But I want to add a bit more functionality so that when a user signs up in addition to chosing a login name and password they type in a company name which is added to a seperate table called COMPANIES. The id

This is what I tried: > num.vec <- c(12.34,56.78,90.12,34.56) > names(num.vec)<-c("first","second","third","fourth") > num.vec first second third fourth 12.34 56.78 90.12 34.56 > seq<-(1:4) > num.mat<-rbind(num.vec,seq) > num.mat first second third fourth num.vec

Hi there I''ve been running BackgroundRb in production for a few months now. Recently we added encryption onto some of our ActiveRecord fields by hooking in the before_save and after_save callbacks, like: class MyCallback def initialize(attr_names) @attr_names = attr_names end def before_save(model) @attr_names.each do |attr_name| next if

Hi, I''m looking at ways to encrypt email addresses rather than storing them directly in the database. There are several ways that it could be done. I could make an Encrypter class and use before_update, etc. Or I could set up an updatable VIEW in mySql. (I guess triggers might be another possibility.) However, what I would really LIKE to do is use the handy AES_ENCRYPT and

One of the products of Project MOSAIC (funded by an NSF CCLI grant) has been the development of an R package with the goal of making it easier to use R, especially in teaching situations. We're not quite ready to declare that we've reached version 1.0, but version 0.4 does represent a fairly large step in that direction. You can find out more about the package on CRAN or by installing

One of the products of Project MOSAIC (funded by an NSF CCLI grant) has been the development of an R package with the goal of making it easier to use R, especially in teaching situations. We're not quite ready to declare that we've reached version 1.0, but version 0.4 does represent a fairly large step in that direction. You can find out more about the package on CRAN or by installing

Hello, If I have two correlation matrices (e.g. one for each of two treatments) and then perform cor() on those two correlation matrices is this third correlation matrix interpreted as the correlation between the two treatments? In my sample below I would interpret that the treatments are 0.28 correlated. Is this correct? > var1<- c(.000000000008, .09, .1234, .5670008, .00110011002200,

No...maybe i don't explain u well. After that B call C andC not answer (go in timeout), B hear first the beeperr and then, together A the busy tone. Now i can't re-take the call :| Thanks Giordano -----Messaggio originale----- Da: asterisk-users-bounces@lists.digium.com [mailto:asterisk-users-bounces@lists.digium.com] Per conto di Gavin Hamill Inviato: mercoled? 1 giugno 2005 12.34 A:

Hi guys, just to let u known the pinout for the adapter : Adapter for connect the E1 telco lines on my digium card DB9 RJ45 3 1 8 2 2 4 6 5 Adapter used for connect the Hicom150 traditional PBX on my digium card (cross connection) DB9 RJ45 3 4 8 5 2 1

hi, i observe some weirdness in rsync file transfer i cannot explain. i'm transferring data from 2 freenas storages to a linux vm with zfsonlinux. "fnask" is older freenas with rsync 3.1.1 running in daemon mode, freenas-bnkw is more recent with rsync 3.1.2, also daemon-mode. on the linux vm where the data is being pulled from the 2 freenas boxes, i look onto io bandwidth being

PROBLEM `signif' does change to scientic notation at different levels depending on the number of significant digits in the input. This can generate tables where figures change ``irregularly'' from normal to scientific notation. PROPOSAL The change to the scientific notation should be made only if the figure in scientific notation - with potentially as

It seems to me that you are using polygon in a wrong way. What you probably need could be something like: polygon(c(rev(t$z), t$z), c(rep(0, nrow(t)), t$ht), col=2, border=NA) Stefano -----Messaggio originale----- Da: r-help-bounces at stat.math.ethz.ch [mailto:r-help-bounces at stat.math.ethz.ch]Per conto di LL Inviato: sabato 26 maggio 2007 12.34 A: r-help at stat.math.ethz.ch

Does anyone know if the lmer function of lme4 works fine for unbalanced designs? I have the examination results of 1000 pupils on three subjects, one score every term. So, I have three scores for English (one for every term), three scores for maths etc. However, not everybody was examined in maths, not everybody was examined in English etc, but everybody was in effect examined on four subjects. I

The only observation I can make is that the change to round() was made in r77727 whereas your R-devel appears to be r77715 (so would not exhibit the fixed behaviour). My guess is that there was a perpetual installation failure after r77715 but that the test folder was still retrieved and used. On Sat, 8 Feb 2020 at 19:27, Berwin A Turlach <berwin.turlach at gmail.com> wrote: > >

OK try it now - I checked in a few more fixes. On Tue, Feb 22, 2011 at 8:29 AM, Chuck Zhao <czhao at eecg.toronto.edu> wrote: > I still can't build LLBrowse on my Debian5-i386 machine today, > The following is a full build console output. > I am using LLVM-2.8 release build, with needed wxWidgets and CMake. > > Thank you > > Chuck > > sideshow.eecg>time

I still can't build LLBrowse on my Debian5-i386 machine today, The following is a full build console output. I am using LLVM-2.8 release build, with needed wxWidgets and CMake. Thank you Chuck sideshow.eecg>time cmake ../llbrowse -- The C compiler identification is GNU -- The CXX compiler identification is GNU -- Check for working C compiler: /steffan/a/a0/czhao/bin/bin32/gcc -- Check

On Sat, Feb 8, 2020 at 9:27 AM Berwin A Turlach <berwin.turlach at gmail.com> wrote: > > G'day all, > > I have daily scripts running to install the patched version of the > current R version and the development version of R on my linux box > (Ubuntu 18.04.4 LTS). > > The last development version that was successfully compiled and > installed was "R Under

G'day all, I have daily scripts running to install the patched version of the current R version and the development version of R on my linux box (Ubuntu 18.04.4 LTS). The last development version that was successfully compiled and installed was "R Under development (unstable) (2020-01-25 r77715)" on 27 January. Since then the script always fails as a regression test seems to fail.

I?disagree?with?what?is?assessed?as?"correct"?in?vignette?of?package?'round'. With x?<-?9.18665 ,?what?is?actually?stored?in?'x'?is?a?number?that?is?slightly?larger?than?9.18665.?So,?as?said?in?the?vignette,?it?is?closer?to?9.1867?than?9.1866. sprintf("%.4f",?x) giving "9.1867" is?correct,?as?it?is?a?string?representing?the?_exact_?number?9.1867.