similar to: Applying Logical statement to DateTime string as factor

I am using a plot to inspect data points, and I would like to identify each point with respect to an ID. At issue is that I am producing a faceted plot with many IDs (96) and the key is far to large to accurately identify points by color. 1) Can you direct me on labeling or printing data points by an ID instead of a point, as in "ID" in this toy example 2) alternately is there method

Hi, I''m using postgresql 8.1, rails 1.0, and I have a strange problem on a datetime field (timestamp without time zone in postgresql). As shown below, the field "value" sometimes returns a string, and sometimes a Time instance, depending of where the value is used....: * breakpoint session _from inside an instance method_ of the object: value => "1996-05-01

All I have been looking into the books on performing statistics in R, in particular I am interested in General Linear Mixed Models, for Randomized Complete Block Design Experiments The list I have come away with so far is: Mixed Effects Models in S and S-plus by Pinheiro (2002)

I am having trouble with variable scoping inside/outside functions. I want to use get() to grab a named and quoted variable as an input to a function, however the function can't find the variable when it is entered into the function call, only when it is named in the main environment. I obviously am not so clear on variable scoping, and ?get really doesn't clear up my confusion. I am

All I want to overlay two variables on the same plot following their appropriate grouping. I have attempted to use subscripting in panel with panel.xyplot, but I can't get the grouping to follow into the panel...here is an example... dat<-data.frame( y= log(1:10), y2=10:19, x=1:10, grp = as.factor(1) ) dat2<-data.frame( y= log(10:19), y2= 20:29, x=1:10, grp = as.factor(c(2)) )

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

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! 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

Hi, I have a dataframe column of the form v<-c("Fri Feb 05 20:00:01.43000 2010","Fri Feb 05 20:00:02.274000 2010","Fri Feb 05 20:00:02.274000 2010","Fri Feb 05 20:00:06.34000 2010") I need to convert this to datetime form. I did the following.. lapply(v,function(x){strptime(x, "%a %b %d %H:%M:%OS %Y")}) This gives me a list that looks like

I''ve upgraded to mySQL 5.0, and it''s gone pretty smoothly except that on DateTime.now doesn''t seem to return a value that mySQL likes any more, as seen in the following exception: Incorrect datetime value: ''2005-11-20T15:33:12-0800'' for column ''logged_at'' at row 1: UPDATE notes SET `due_on` = ''2005-11-20'',

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:

For some reason whenever I try and create a timestamp column with migrations and mysql I get a datetime column instead. That''s kind of annoying because I want the column to update every time the row gets changed. Is this a bug, or is there something I can do about it? (Obviously I can manually change my mysql table, but that kind of defeats the point of migrations!) In my migration

When I do an XMLRPC webservice call to retrieve a single Product, my DateTime fields in the products table do not get converted to a valid DateTime value, but remain as XMLRPC::DateTime structures. So, say my webservice call is: @product = @aws.get_product(1) Then my @product object looks like this: name: My product last_updated: #<XMLRPC::DateTime:0x37c5338> description: This is my

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.

What would be the best way to search a MySQL datetime field with rails? I have an table in a db which will have many rows, I primarily search it by date. I have a datetime column named simply "datetime", of course along with the date it keeps the time info. I do need the time info, however I only need to search the rows via the dates, so what would be the easiest way to search via

I am trying to implement a web service that returns a datetime stamp as part of the structured object returned in the response. As noted in another post (http://www.ruby-forum.com/topic/59762), there seems to be a problem with the DateTime.parse method in that it does not match the year. Is anyone aware of workaround for this issue? My current idea (a hack, but it seems to work) is to

Hi, I want to insert onto database the Current DateTime Value into database field "Store_date" with datatype (DATETIME). How to do tihs? I am usiing hidden variable into my form as follows:- ======================= <%= hidden_field("store", "store_date", :value =>:datetime ) %> ======================= But when I m submmittng form I couldn''t find

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 - 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

Hye, I try to store DateTime as integer (seconds) in my database (MySQL). I''d like to convert seconds to DateTime in the ActiveRecord object to handle it easily in my views. I try to play with callbacks or with method dedicated to my attributes for eg. def fetched upd = nil v =read_attribute(:fetched) if (v) upd = DateTime.at(v) else upd = DateTime.now end end def