similar to: finding unique values in a column

Hi, I often run into this problem: I have a data.frame with one column containing entries that are not unique. What I then want is a subset of the data.frame in which the entries in that column have become the 'unique' of the original column. Normally I program around it by taking the unique of the column and making a new data.frame with it and filling the rest of the data. (By the way,

Is there any way to tell Rails to send the .html file it renders somewhere other than the web server? I need to save a page to the server''s file system instead of sending it to the user''s browser. Thanks! Bill -------------- next part -------------- An HTML attachment was scrubbed... URL: http://wrath.rubyonrails.org/pipermail/rails/attachments/20060518/facce47e/attachment.html

I would really appreciate some help with changing a link_to_remote call to a button of some sort. Here''s a little background. On the page there are two <div>s. One is a form that lets the visitor enter items. The second <div> is where the entered items get displayed, each in it''s own item <div>. Each item <div> has two <span>s. The first one

Is there a RoR best practice wrt determing in a visitor''s browser has JS disabled? Is there even a way to find out? I''ve got a couple of pages in my app that are not going to degrade gracefully at all. I really need to point a visitor who has JS disabled down a seperate path. Any ideas? Thanks, Bill -------------- next part -------------- An HTML attachment was scrubbed...

Hello- I have a database with entries that are segmented by customers. I would like to be able to store / delete / restore a particular customer''s information. I will need to rebuild the rows on restore and also rebuild the associations for the different tables. For example, customer { id name } companies { id customer_id (belongs_to) name } contacts { id

Could someone point me to documentation that provides a succinct and accurate description of the difference between interpolation using #{}, single quotes, and double quotes ? I imagine there''s a set of precedence rules that govern behavior if/when they''re mixed. I''d like to get clear on this. Thanks, Bill -------------- next part -------------- An HTML attachment was

Can anyone point me to an example of how to use the Insertion.Before technique? I''ve just begun trying to use AJAX and worked through Curt''s "Ajax on Rails". The description in AWD of what this does is just what I need, there''s no example of how to use it, and I''m getting no joy using Google. Any help is tremendously appreciated. -------------- next

Can a worker kill themselves when they''re ''done''? Or do I have to do that either from the controller or the worker manager? Thanks, Bill -------------- next part -------------- An HTML attachment was scrubbed... URL: http://rubyforge.org/pipermail/backgroundrb-devel/attachments/20061023/11dd429c/attachment.html

Does anyone know how to view the new source in IE after an AJAX update? When I "view -> source" I get the original page source, not the page source as updated. Thanks in advance, Bill -------------- next part -------------- An HTML attachment was scrubbed... URL: http://wrath.rubyonrails.org/pipermail/rails/attachments/20060403/e8d96b2e/attachment.html

Greetings! I could use some advice on which version of BackgrounDrb to use in my current situation. I''ve implemented the initial, single-process multi-threaded version in a previous site, but have no experience with the new version. Current situation is as follows. The application involves personal health information and so has very stringent session management requirements. My

Thanks to many of you, I''ve got my session management working with BackGrounDRb. Very cool. So now I need to deploy it. I''m on a shared hosting plan (at a2hosting in case that matters). Are there any issues I should expect to have to deal with in getting them to deploy the plugin? Anything special I need to do? I''m wondering in particular about the ''start

Greetings! What is up with the syntax of this thing? I mean, if the only thing I can send back using :with is the field being observed, then why in the world is the syntax so convoluted? For example, what I''ve been able to get working is: <%= text_field_tag(''date'', illness_date, :size => 30) %></p> <%= observe_field(''date'', :url

I''m trying to figure out how to turn a string into an object. Can anyone point me? Here''s some background. Here''s the part of what I''m trying to do that works. ------------------------------------- @ford = [''mustang'', ''pinto''] make = ''@ford'' puts eval(make) --> produces mustang pinto

Hi, I''m trying to delete a file system (<xml_26548975.xml>) File.delete("xml_26548975.xml") But I get this error: "Permission denied - ./script/../config/../uploads/xml_26548975.xml". Why? -- Cheers, ioana k&a http://boulangerie.wordpress.com/ -------------- next part -------------- An HTML attachment was scrubbed... URL:

I''ve looked at the validates documentation and it appears that validates_uniqueness_of works on only one field at a time. So I can, for example, validate that "sam" is unique to the record set, and that "smith" is unique to the record set. My problem is that each record includes two fields, the _combination_ of which must be unique to the record set, but each of

Is there something special I need to do to access session data in a worker? I''m using an AR session store. I''ve been working with Ezra''s tutorial, modifying it a little here and there to figure it out. So I changed the progress bar to a simple count-down in the worker which sends back the count to display in the view. No big deal. But if I try to access session

I''m trying to decide which IDE to go with for RoR development. I put a high premium on integrated test automated tools and debugging capabilities. I''d appreciate any sharing of experience. I''m currently running Instant Rails on a Windows 2000 box (using IR due to problems I encountered trying to get all the components set up individually). Also, I''m using

If I set a global can it be access from all instances of Rails (on the same application server)? By instances of Rails I mean for each user who use the application? Many thanks, K. -- Posted via http://www.ruby-forum.com/.

Hi, Kind of a dumb question but when there is something in the session how do you remove it? @session.delete(:params) doesn''t work unfortunately. -- Frank Kim http://betweengo.com/ -------------- next part -------------- An HTML attachment was scrubbed... URL: http://wrath.rubyonrails.org/pipermail/rails/attachments/20060309/de00e277/attachment.html

I hope no one gets offended by my asking, but I wonder what others think about the possibility of splitting the list into two or three focal areas. Personally, I think I''d like to see three seperate lists: 1) newbie development (e.g., help working through tutorials, etc.) 2) more advanced development topics, 3) environment setup / admin.. What do you think? Best regards, Bill