similar to: metaprogramming in controller: accessing instance variables

Is there somebody out there who has built a working thingy with the Sublist plugin? I can''t get it to work. I get this error message: undefined method `stringify_keys!'' for "2005":String RAILS_ROOT: ./script/../config/.. Application Trace | Framework Trace | Full Trace E:/Programmeren/Ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.2/lib/active_record/base.rb:1506:in

Hello, Say I want to make a multiple regression model with the following expression: lm(y~x1 + x2 + x3 + ... + x_n,data=mydata) It gets boring to type in the whole independent variables, in this case x_i. Is there any simple way to do the metaprogramming for this? (There are different cases where the names of the independent variables might sometimes have apparent patterns or not)

Hi; It seems to me that has probably been asked in the past. But I cannot find the track. I usually need to extract elements from a list and contruct vector from them; e.g., to create a table. Perhaps there is a way to directly extract them without looping? Simple example: > S.lst $sublist.1 $sublist.1$age [1] 24.58719 $sublist.1$weight [1] 60.82861 $sublist.2 $sublist.2$age [1] 32.39551

I always need to apply alternating item styles when outputting a collection, here''s what I''ve been using recently. In the app helper I define this method: def alternate(items,alt=false items.map{|i| i.class}.each { |k| k.class_eval {attr_accessor :alt}} items.each { |i| i.alt, alt = alt, !alt } end When I call the partial I wrap the collection with this method:

In HAML I have hundreds of lines like the following: - xyz = someFuncThatReturnsString(''xyz'') and elsewhere %div{''id'' => xyz} The above lines work fine. - - - Attempting to keep things DRY (Don''t repeat yourself) I want to do something like - eval(otherFuncThatReturnsString(''xyz'')) where

Hi everyone, Suppose I have a list named "lst", see below: > lst $sub1 ... $sub1$x ... $sub1$y .... $sub2 ... $sub2$x ... $sub2$y ? $sub3 ... ... ... Now, I want to extract the sub-sublist $y from every sublist(sub1, sub2...) and then storage them to a new list. I know how to extract them by subscript or list name one by one, but I wonder if there exist some tricks to finish this

Hello everyone, I need some help with lists inside lists (a good way to emulate a struct)\ Assume that there is a small list called fred: fred <- list(happy = 1:10, name = "squash") and a big list called bigfred that includes fred list 5 times bigfred <- rep(fred,5) Is it possible somehow to index all these sublists(fred) inside bigfred with a more direct way like this:

Hello R-ologists, Imagine you have a list "list" like so: >list [[1]] [1] "IPI00776145.1" "IPI00776187.1" [[2]] [1] "Something" "IPI00807764.1" "IPI00807887.1" [[3]] [1] "IPI00807764.1" [[4]] [1] "Somethingelse" What I need to achieve is a filtered list "list2" like so: >list2 [[1]] [1]

URLS http://rubyforge.org/projects/codeforpeople/ http://codeforpeople.com/lib/ruby/traits ABOUT traits.rb is set of attr_* like methods on steroids, caffeine, and botox. it encourages better living through meta-programming and uniform access priciples. traits.rb supports smart inheritence of class attributes and a fistful of hooks for veryifying and munging attr values.

my problem is more complex than below but I think below can suffice. i have a list and the name of it at the top level is GGG. so, if i do an lapply and operate on lower components in the sublist, then I can do as shown in EXAMPLE 1 and what will come back will be named GGG at the top level. but, suppose that , the function inside the lapply function was more complex and i wanted to

[if the format of my email is changed or is difficult to understand, a text file is attached for easy understanding]Dear useRs, i was wondering that if its possible in R to automatically generate plots and get it saved at the desired location? i have data of cancer patients, from about 1000 cities around the world. i have converted that data into a list (called tcp) and that list has 1000

I was sending my manager a copy of a form, and attached it (not inline), using -t-bird, and he complains it didn't want to open. Looking at the message source, t-bird had decided that the mime type was all/allfiles, though the name ended in .pdf. I've searched via the config editor, and I've been googling, and not finding anything. (I just *adore* the current google: I have

I'm using * at home and I planned on having * let the answering machine in my kitchen to the "general" voicemail getting. However, about 6s into the call * will hang up the line. I found a post about OHT somethingorother, so I can probably work around it, but I'd like to know what's happening and if there's a better way around. Thanks! -- -M There are 10 kinds of

Hi All With winetools 2.12 and the 2004-10-somethingorother release I'm finally able to 'use' wine with some industry specific little applications. [THANKS Joachim for making other's hard work so useable! I've been wanting to do this for ever and never got it to work previously. ] So, I've installed wine, winetools and a half dozen Windows applications. I'd like

Tris Hoar wrote: > On 22/04/2015 19:25, m.roth at 5-cent.us wrote: >> I was sending my manager a copy of a form, and attached it (not inline), >> using -t-bird, and he complains it didn't want to open. Looking at the >> message source, t-bird had decided that the mime type was all/allfiles, >> though the name ended in .pdf. I've searched via the config editor,

A couple of weeks ago, I got an autogenerated email from the mail folks here, telling me they'd quarantined what they thought was spam. The last time I got one of these was a month or month and a half ago, and I had no problem. This time, however, I get a 500 error. When I pulled up firefox's error console, and clicked on the link, I got <servername elided>: server does not support

I''m having a huge memory leak problem with a rails application I''m developing! I first noticed that when running under webrick (via script/server) there was a fast memory leak.. several users using the app for a few hours would use 2 gig of memory!!! I searched the archives and found that some users found that it could be avoided by saying --daemon when launching webrick..

Sylvain CANOINE wrote: >> De: "Jonathan Billings" <billings at negate.org> >> Maybe you're not aware of it, but there are a LOT of things that >> systemd fixes that people are happy about. > Like what ? I don't remember there were as many errors to fix before > systemd appeared. > Agreed. The speed of boot and shutdown? Whoop-de-do. I've got

I have a list of dataframes i.e. each list element is a dataframe with three columns and differing number of rows. The third column takes on only two values. I wish to split the list into two sublists based on the value of the third column of the list element.  Second issue with lists as well. I would like to reduce each of the sublist based on the range of the second column, i.e. if the range of

Hi, i was looking through the docs and couldn''t find a good clean solution for ordering a partial with an :order clause. say i was iterating over categories and thier corresponding sub-categories (regular belongs to) and wanted to order the subcategories according to a certain column; <% for category in @categories %> <% render: partial => ''sublist'',