similar to: pdf on the fly

Hello All: I have been working with <a href="http://ruby-pdf.rubyforge.org/pdf-writer/index.html">Austin Ziegler''s PDF::Writer</a> as a means to produce PDF documents from my Rails app. I am stumped on how to iterate through a collection of items and output them in a table format. The way I have tried it so far only returns the last item in the collection -

Hi All, I generate a pdf report that contains a table. The report is 14 pages, and it takes 20s to be rendered. Most of these 20s are spend in the render_on method. I wonder if it is possible to speed up that process? To create the report, I do the following: 1) Setup pdf layout: # Setup pdf layout pdf.select_font("Helvetica", { :encoding => "WinAnsiEncoding"})

i am trying to generate a pdf of all of the users in an application that i have built. i am still pretty new to ruby and rails so i don''t know the best way to go about it. here is my controller code: require ''pdf/writer'' require ''pdf/simpletable'' class ReportsController < ApplicationController def test _pdf = PDF::Writer.new table =

Hi R users. I've got a problem in producing the pdf file from Latex with R code. When I run the code Sweave("example.Rtex") in R it seems working, but when I run the Latex file it doesn't. The code error shown to me is below: *Runaway argument? {echo=FALSE} data<- read.csv("C:\\Users\\Daniele\\Desktop\\dati\\dati_england ! File ended while scanning use of \FV at

I''m wondering if there''s a max number of draggables. I have a situation where there are something like 60-80 draggable items and they work fine on the test server with only a handful of items, but in production with the full load they no longer work. It''s possible there''s something else different -- somehting with style sheets or something, but I wanted to see

hi, I have two questions: #first (SPSS vs. R): I just compared the output of different PCA routines in R (pca, prcomp, princomp) with results from SPSS. the loadings of the variables differ vastly! in SPSS the variables load constantly higher than in R. I made sure that both progr. use the correlation matrix as basis. I found the same problem with rotated values (varimax rotation and rtex=T

It doesn''t seem to be possible, but perhaps somebody knows a trick. I have some lists that get too long and users can''t drag from list 10, for example, to list 1. Is there a way to get the browser window to scroll as they drag the item up? Thanks! Tom

Hi: I''m looking to get a point clarified which i''m sure is obvious to everyone else but I haven''t been able to find the answer to. i''ve tried searching through the forums and the api pages and haven''t found anything. Is there a way with migrations to set up foregin key relationships? (beyond putting in the relevant foregin_id attributes) Is

Hello, I am having performance issues ending with a ''time out'' from Apache when I try to generate a PDF file using pdf-writer. It seems to happen at the render_on(pdf) function call ; the table I am trying to draw has 8 colums which values are generated on the fly. Can''t find anything about pdf-writer and the ''time out'' on the Web so far. Any

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Hi everyone, I am using package knitr, FIRST TIME. I don't have access to RStudio. Read through Yihui's page, didn't find it helpful. Stuck on terms Rnw, GFM (GitHub Flavored Markdown). Never used Sweave, so the reference is not helping. Is there a simple step-by-step example WITHOUT RStudio? My question: What is the procedure? The documentation explains the functions, but does

I have a table of employees with the fields "last_name" and "first_name". I would like to populate a collection select so that what the user sees in the drop-down is "Last Name, First Name". So far, the only way I have figured out to do this is by using "find_by_sql" in my model, like so: @employees.find_by_sql("SELECT id, concat(last_name,

What pain. I am ready to switch hosts. I have this app in Dreamhost where I load the static pages just fine. The location of my rails app is /home/username/webaddress.com Under that resides the app/, public/ and so on. Like I said I can see my static pages that I have under public since I have in the Managed host panel the following: Web Directory: /home/username/[ webaddress.com/public

I have data sets from three different sites. None of the data sets are normally distributed and can not be log-transformed to a normal distribution. I would like to compare the data sets to see if any of the sites are similar to each other, and would like something more powerful than a non-parametric wilcoxen test. Does anyone have any suggestions on more powerful ways of comparing non-normal data

Hi all, I have a RoR app which can output a report in HTML back to the web browser, or (preferably) in PDF using the RTex plugin. I have a number of text fields which are stored as HTML, and am looking for a good way to convert them to something LaTeX-compatible, or plain text if that''s the last resort. I''ve seen a number of html2tex-type converters out there, but they are by

Does any know a simple way to count the number of pages in a PDF file? I''m using teh RTEX plugin to generate a PDF via pdflatex with a defined start page number. I want to determine the final page number so I can start the next PDF in sequence. Thanks in advance for your help! -cal

Hello, I try to document some R scripts for my collegues and observed the problem, that Sweave strips comment lines away. As a small example I write in an Rtex file: \begin{Scode} ## a small example test() # line comment \end{Scode} ... the .tex file generated by Sweave only contains: \begin{Schunk} \begin{Sinput} test() \end{Sinput} \end{Schunk} ... and all the comments are lost.

Hello, I try to document some R scripts for my collegues and observed the problem, that Sweave strips comment lines away. As a small example I write in an Rtex file: \begin{Scode} ## a small example test() # line comment \end{Scode} ... the .tex file generated by Sweave only contains: \begin{Schunk} \begin{Sinput} test() \end{Sinput} \end{Schunk} ... and all the comments are lost.

I'd like to create a suitable batch file or shortcut so that I can run Sweave on a .Rnw or .Rtex file simply by clicking on the file from Windows Explorer in Windows XP (as I do with latex, bibtex etc). This looks tantalisingly possible using R CMD BATCH or Rterm possibly in combination with a .bat file. Has anyone succeeded is setting it up and would give me a pointer? Thanks Gordon

Hello, My first PDF report from rails. When i try to render "tab.render_on(pdf)", I get that error message. Thanks any help, Helder ================================================================= TypeError in ContasController#plano singleton can''t be dumped RAILS_ROOT: script/../config/.. Application Trace | Framework Trace | Full Trace