similar to: Initializing aggregated structures

Hi all, When submitting a master/detail form I first want to handle the children before saving the parent. There are has_many and belongs_to relations between the parent and the children, so I can edit the children using (psuedo-)code like: child.destroy for deleting, child.update_attributes for updating and @parent.children.push(child) for adding child-records. I update the parent by using:

Good day, does anyone here have a clue on how to make use of the NoSQL database "Riak" with Camping? I am building my website and Riak seems like pretty much the ultimate database! This would probably ruin every little feature in ActiveRecord, I don''t think I''d be able to do any has_many''s or belongs_to but I''d LOVE to be proven wrong. As far as

I have the following model structure setup. class User < ActiveRecord::Base end class Parent < User has_many :relationships has_many :children, :class_name => "Student", :through => :relationships, :conditions => "related_as = ''parent''" end class Student < User has_many :relationships

I''m trying to create a sequence with no gaps in my db (contrived example, but should work out the same as my real one), and believe db-managed transactions are the way to go about this. It''s my first real ''go'' at transactions, so I may be mistaken about how things really work. Anyway.. Consider this example code: Class Invoice < ActiveRecord::Base def

We have a fairly expensive task that we''d rather not schedule too many instances of in parallel. Couldn''t get pool_size to limit the amount of workers, and I figure that''s hardly optimal anyway, so would like to have the work queued up for a single named worker instead, running as soon as possible. Using MiddleMan.schedule_worker() with :job_key does start off a

Hello! I''m looking for assistance EXTENDING an example from the Agile Web Development With Rails book: Composing Data with Aggregation (page 324). I''m trying to map three columns to a single Ruby object. However, unlike the example in the Agile Web Development book, the three columns I want to map into one object come from THREE DIFFERENT models. I want to map the following

[Automatic forwarding from R-bugs failed. This message has been manually forwarded.] Hi all! I'm trying to add Thomas Lumley's defmacro() function Lumley T. "Programmer's Niche: Macros in {R}", R News, 2001, Vol 1, No. 3, pp 11--13, \url{http://CRAN.R-project.org/doc/Rnews/} to the gtools package (provided that Thomas gives his OK). And I've encountered an error in

Hi, I am trying to fit a non-linear model for a parasite dataset. Initially, I tried log-transforming the data and conducting a 2-way ANCOVA, and found that the equal variance of populations and normality assumptions were violated. Gaba et al. (2005) suggests that the Weibull Distribution is best for highly aggregated parasite distributions, and performs better (lower type 1 and 2 error rates)

Hi all, I have a problem with computing a new variable as an aggregated score of other variables. Say, I have 10 variables for 1,000 observations (people). Every variable may have values between 0 and 8. What I would like to do is computing the mean of the individual top 3 values for every person. Exampe: The values for the 10 variables (v1 to v10) for person A, B and C are as follows: A 0 1 0

Hi useRs! I would like to know how to make aggregated data.frame with aggregate() tabulated. For example, I run the following command to aggregate re with respect to group1 and group2. > (aggr <- with(final, aggregate(re, group1, group2, mean))) Group.1 Group.2 x 1 1992 15 0.16392 2 1993 15 0.15467 3 1994 15 0.15456 4 1995 15 0.15391

Author: bw Repository: /hg/zfs-crypto/gate Revision: 8256e1e381a84873d93d900e1d0735c57208e91b Log message: 6331032 in.routed deletes aggregated passive routes through remote gateways Files: update: usr/src/cmd/cmd-inet/usr.sbin/in.routed/table.c

Hi, I have aggregated data in 5 categories and want to fit a gamma distribution to it (works fine). My question is that on theoretical grounds I could claim that the observation in the first category (the zero count) are certain, i.e. I know for sure the number. This would then mean in fitting a gamma distribution to the remaining 4 categories. My question is now how can I compare the fit

Dear all, I have several text files looking like this: 9063032 19700201 22:00 174.067 9063032 19700201 23:00 174.076 9063032 19700202 00:00 174.085 9063032 19700202 01:00 174.091 9063032 19700202 02:00 174.094 9063032 19700202 03:00 174.091 9063032 19700202 04:00 174.082 9063032 19700202 05:00 174.079 And I run this loop: for (j in 1:nr.of.files) { #Import: DF <-

On Tue, 14 Jan 2020 at 18:38, Alex Hackney <me at alexhackney.com> wrote: > You could use AWS Route 53 to do the load balancing or a server side > script to do it. Route 53 could be done in no time and works well for us. > Sounds very interesting, Alex. AWS Route 53 is new to mw. And how do you you aggregate listener stats from your server cluster? Cheers Chip Scooter

Good afternoon, On Mon, 2020-01-13 at 13:30 +0000, Chip wrote: > Hi > > I have a potential project for which my client requests that we load > balance the streaming service. > > Of course, the Icecast server scales very well. > > - http://icecast.org/loadtest/ > > However, the client requests high-availability and, due to the scale of the > potential

You could use AWS Route 53 to do the load balancing or a server side script to do it. Route 53 could be done in no time and works well for us. On Tue, Jan 14, 2020, 11:36 Chip <chiapas at aktivix.org> wrote: > Many thanks for this Philipp. > > On Mon, 13 Jan 2020 at 14:01, Philipp Schafft < > phschafft at de.loewenfelsen.net> wrote: > >> I would recommend against

On Fri, Feb 07, 2020 at 09:33:08PM +0000, Eric Wong wrote: > Hey all, I've been using ->add_database for a few years > to tie sharded DBs together and it works great. > > Now, I want to be able to search across several DBs > which aren't sharded, say: linux-DB, glibc-DB, freebsd-DB. > > I want to search for something across all of them, but > prioritize results

On Sat, Feb 08, 2020 at 06:04:42PM +0000, Eric Wong wrote: > Olly Betts <olly at survex.com> wrote: > > On Fri, Feb 07, 2020 at 09:33:08PM +0000, Eric Wong wrote: > > > Or would I fiddle with wdf_inc for all ->index_text and ->add_term > > > calls on a per-DB basis? > > > > That would probably work if you don't want to be able to vary the

On Wed, Feb 19, 2020 at 10:23:09AM +0000, Eric Wong wrote: > Btw, is there a way to quickly figure out which sub-DB a retrieved > document or mset item belongs to? Yes: https://trac.xapian.org/wiki/FAQ/MultiDatabaseDocumentID 1.4.12 added a Database::size() method which reports the number of shards - for older versions you have to keep track of that yourself (which needs a little care as

On Mon, 20 Jan 2020 at 13:16, Alex Hackney <me at alexhackney.com> wrote: > I built a system for handling all the data, songs, listeners, royalties, > etc. It's all in the docs. > Thanks. Which docs? Icecast docs or Route 53 docs? Chip On Tue, Jan 14, 2020, 17:57 Chip <chiapas at aktivix.org> wrote: > >> On Tue, 14 Jan 2020 at 19:32, Michel van Dop