similar to: datetime returned as string, sometimes....

Dear R experts, I have a problem in modifying one column of a dataframe with a datatime format using a datetime operator. Here is my dataframe A: DATACONT PROVINCIA VALORE 1 2007-12-31 MI 1 2 2007-12-31 PV 2 3 2007-12-31 NA 3 4 2007-12-31 MI 4 5 2007-12-31 RM 5 6 2007-12-31 RM 6 7 2007-12-31 MI 7 8

Hi, Before switching to io mode=native, I wanted to check if there are any disadvantages or potential problem with this setting. I virtio-blk data plane required to use this setting effectively? (as illustrated here: http://blog.vmsplice.net/2013/03/new-in-qemu-14-high-performance-virtio.html) Is there a requirement on the host kernel (eg minimum version)? Thanks in advance Raph

Hi, I''m putting the finishing touches on a multi-lingual application, and just posted a blog entry on how I did translate validation errors generated by ActiveRecord at: http://www.myowndb.com/blog/?p=4 I found it surprisingly easy, and thought I''d document it. The translation is based on a plugin I plan to publish really really soon, more info whith the upcoming announcement.

Hi all, I wanted to announce on this list that I have launched http://myowndb.com which is a web database built with Ruby on Rails. The application lets the administrator users define the data structure through a web interface like in a normal database, with: - tables - enhanced datatypes like emaili, web URL, and a choice in list - relations (one to many, one to one) between tables Once the

Hello I have this little dataset, my goal is create one column in the data.frame with between the diference DataTime and Duration. I'm using the next code to make do this TIME_STAMP SESSIONTIME Time TimeStart 1162343932 8320 2006-10-31 19:01:34 2006-10-31 16:42:54 1162343215 592 2006-10-31 19:02:04 2006-10-31 18:52:12 1162341465 11875

Hi I have been attempting to do a mapping on the last_logon plugin. I have been reading the documentation on mapping. is there any way to customise a little more and create a individual SQL query for each of the functions SELECT and UPDATE, my current SQL setup has the username and domain in separate tables and my user_query and password_query are concat which I do not believe can be defined

I currently have a model that simply contains one datetime field: class CreateElectricityReadings < ActiveRecord::Migration def self.up create_table :clocks do |t| t.datetime :time_keeper t.timestamps end end def self.down drop_table :clocks end end If I enter the date string "13/10/2010" into this field its showing up in the controller as

Hi, I''m writing a translation plugin which takes the translations from a database that is different than the application''s main database. When in my plugin''s models I put this code: ActiveRecord::Base.establish_connection( RAILS_ENV+"-translations" ) all my application''s models use the plugin''s database.... Why are my

i have a problem with the datetime format of rails. i am unable to save a dataset to the db. here''s the error message -- the original error message was in german, so i translated it -- i get: DBI::DatabaseError: Execute OLE error code:80040E07 in Microsoft OLE DB Provider for SQL Server Couldn''t convert a char-Datatype to datetime HRESULT error code:0x80020009

Hi, I''ve used .save to save the attributes, but on my table there is an autoincrementing id (not the primary key) that doesn''t need to be inserted... but save try to INSERT it anyway... is there a way to avoid save from acting this way or to whisper him to be more polite this time? ;) Thanks, Enrico -- "The only thing necessary for the triumph of evil is for good men to do

On 03/24/2014 03:57 AM, Raphael Bauduin wrote: > > > > On Thu, Mar 20, 2014 at 9:13 AM, Raphael Bauduin <rblists@gmail.com > <mailto:rblists@gmail.com>> wrote: > > Hi, > > Before switching to io mode=native, I wanted to check if there are any > disadvantages or potential problem with this setting. > I virtio-blk data plane required

Hi, I''m finalising a translation plugin I use in one app. I''d like the plugin the be configurable but am not sure how to provide this configurability. For example, there''s a setting for the cookie name to use when saving user''s prefered language. I thought of having a class TranslationConfig like this: class TranslationsConfig def self.cookie_name

Hi! These days I have been having trouble with a test that tried to test DateTime functionality. I have discovered that a NULL DateTime is auto-type casted to NIL by Rails. My problem here is that I have a field :datetime and I want to allow NULL datetimes but not wrong datetimes. With this validation if deadline is wrong or if is is blank it returns true. How I can accomplish this? protected def

Hello, In Asterisk 1.4 beta 3, the UPGRADE.txt file says: Variables: * The builtin variables ${CALLERID}, ${CALLERIDNAME}, ${CALLERIDNUM}, ${CALLERANI}, ${DNID}, ${RDNIS}, ${DATETIME}, ${TIMESTAMP}, ${ACCOUNTCODE}, and ${LANGUAGE} have all been deprecated in favor of their related dialplan functions. You are encouraged to move towards the associated dialplan function, as these

I am building an application and I have generated the scaffold for a product. In the list method I include something like my_date = Datetime.now and the result I get from the webrick is an error uninitialized constant Datetime Do I have to add a line with a require? I am new at ruby on rails thanks in advance -- Posted via http://www.ruby-forum.com/.

Hi all - I have written an XML-RPC app using action-web-service. Mostly works well. Except I just noticed that my :datetime types are coming back as :date types. That is, when in the console I query the record via Foo.find_by_id(123) I get back actual datetimes. If I then do it via XML-RPC, fetching that same record I get back dates (ie. hour/minute/second are set to 00:00:00) Any ideas?

Full_Name: Naoki Takebayashi Version: 1.2.2 OS: Linux, RedHat 7.0/alpha Submission from: (NULL) (152.3.12.123) With RedHat 7.0/alpha (gcc 2.96-69), I encountered following error: gcc -I. -I../../src/include -I../../src/include -I/usr/local/include -DHAVE_CONFIG_H -mieee -O2 -mieee -c datetime.c -o datetime.o datetime.c: In function `do_systime': datetime.c:306: parse error before `ans'

Hi all - Implementing my first web service with rails and trying things out using the "/controller/invoke" interface. Mostly works fine. But I have a function that takes a datetime and returns all rows that are newer than that. According to the log the SQL it''s generating is this: SELECT * FROM xxxx WHERE (created_at >= ''2006-04-25T13:18:31Z'') I have

I have datetime (SQL) column in my DB, and I noticed whenever I retrieve that column using ActiveRecord, it returns an object of class Time instead of DateTime. Does Rails convert treat datetime and time as if they''re the same? Eric --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails:

I'm relatively new to R .I tried converting the datetime column with values like 01apr1985:00:00:00.000 using strptime(datetime,"%d%b%Y).Could anyone help me in this regard .Please reply ASAP i need . -- View this message in context: http://www.nabble.com/Datetime-conversion-tp25503138p25503138.html Sent from the R help mailing list archive at Nabble.com.