search for: tutmann

Hello, I'm new to R but wan't to use it to compute the statistics of my medical study. The study includes several parameters for a number of patients. Each parameter was assessed by a number of readers, once with a special condition, once without. Now I have a data.frame with colums like: PatientID, ReaderID, SpecialCond(yes/no), Parameter1, Parameter2..... the rows are not sorted, and

Hello, I use Ruby on Rails to generate images, which are delivered via mod_fastcgi to apache2. These images should be cached using mod_cache and mod_disk_cache. But it does not work. In Rails I set my http headers like this: expires_in 30.hours, :private => false @response.headers[''Last-Modified''] = im.serie.received