search for: expressione

...is new version of R GUI. I've used limmaGUI package with an older version of R and it works perfectlly, but now with the last version R 2.0.1.0 two error boxs appear every time I try to launch this package: 1. <<Error in list.files(path, pattern, all.files, full.names, recursive): regular expressione 'pattern' not valid>> 2. <<Error in try(expr, TRUE): oggetto "source.files" not found>> The package correctly load the grapich interface anyway, but I've experimented some problems when I try to load my .gpr files for analysis: the program often crash! Than...

I need to select rows form a table based on the first letter of the name column. Like a teledex there will be a letter provided by a request. Currently i have @artists = Artist.find(:all, :conditions => [ ''LOWER(name) LIKE ?'', ''%'' + params[:id].downcase + ''%'' ], :order => ''name ASC'',

Hi, I''ve started reading some Java books. Gasp! What makes website development with Java so bad? I haven''t looked at Struts but I''m reading about Hibernate. Compared to ActiveRecord, Hibernate seems like some extra typing to explicitly define the model fields, getters and setters. I know that these are things that you can do in ActiveRecord when things get complicated