OS X R 4.3.1 Colleagues I often create multipage PDFs [pdf()] in which the text "Page X" appears in the margin. These PDFs are created automatically using a massive R script. One of my clients requested that I change this to: Page X of XX where XX is the total number of pages. I don't know the number of expected pages so I can't think of any clever way to do this. I suppose that I could create the PDF, find out the number of pages, then have a second pass in which the R script was fed the number of pages. However, there is one disadvantage to this -- the original PDF contains a timestamp on each page -- the new version would have a different timestamp -- so I would prefer to not use this approach. Has anyone thought of some terribly clever way to solve this problem? Dennis Dennis Fisher MD P < (The "P Less Than" Company) Phone / Fax: 1-866-PLessThan (1-866-753-7784) www.PLessThan.com
You need to use raw LaTeX See section 4 here Von meinem iPad gesendet> Am 02.12.2023 um 15:39 schrieb Dennis Fisher <fisher at plessthan.com>: > > ?OS X > R 4.3.1 > > Colleagues > > I often create multipage PDFs [pdf()] in which the text "Page X" appears in the margin. These PDFs are created automatically using a massive R script. > > One of my clients requested that I change this to: > Page X of XX > where XX is the total number of pages. > > I don't know the number of expected pages so I can't think of any clever way to do this. I suppose that I could create the PDF, find out the number of pages, then have a second pass in which the R script was fed the number of pages. However, there is one disadvantage to this -- the original PDF contains a timestamp on each page -- the new version would have a different timestamp -- so I would prefer to not use this approach. > > Has anyone thought of some terribly clever way to solve this problem? > > Dennis > > Dennis Fisher MD > P < (The "P Less Than" Company) > Phone / Fax: 1-866-PLessThan (1-866-753-7784) > www.PLessThan.com > > ______________________________________________ > R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code.
Can you provide a very simplified version of how the PDF is created? On Sat, 2 Dec 2023, 14:39 Dennis Fisher, <fisher at plessthan.com> wrote:> OS X > R 4.3.1 > > Colleagues > > I often create multipage PDFs [pdf()] in which the text "Page X" appears > in the margin. These PDFs are created automatically using a massive R > script. > > One of my clients requested that I change this to: > Page X of XX > where XX is the total number of pages. > > I don't know the number of expected pages so I can't think of any clever > way to do this. I suppose that I could create the PDF, find out the number > of pages, then have a second pass in which the R script was fed the number > of pages. However, there is one disadvantage to this -- the original PDF > contains a timestamp on each page -- the new version would have a different > timestamp -- so I would prefer to not use this approach. > > Has anyone thought of some terribly clever way to solve this problem? > > Dennis > > Dennis Fisher MD > P < (The "P Less Than" Company) > Phone / Fax: 1-866-PLessThan (1-866-753-7784) > www.PLessThan.com > > ______________________________________________ > R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. >[[alternative HTML version deleted]]
One of the most fundamental characteristics of R programming is the use of data frames of column vectors, and one of the very first challenges I had as a then-Perl-programmer was coming to grips with the fact that unknown-length CSV files would be read completely into memory as rows and once the entire CSV was in memory it would be transposed into column vectors. I was resistant to this philosophy at first, but the advantages in computation speed and simplicity eventually won me over. I would say that if you want to know how many pages you are going to produce with R, then you are going to have to count them before you create them. Building a dataframe that describes (in terms of parameters to be passed to a page-generating function in each row) what you are going to put on each page before you actually print it can make this pre-counting problem trivial, and the code that does the printing is likely to be more modular and testable as well. On December 1, 2023 12:53:25 PM PST, Dennis Fisher <fisher at plessthan.com> wrote:>OS X >R 4.3.1 > >Colleagues > >I often create multipage PDFs [pdf()] in which the text "Page X" appears in the margin. These PDFs are created automatically using a massive R script. > >One of my clients requested that I change this to: > Page X of XX >where XX is the total number of pages. > >I don't know the number of expected pages so I can't think of any clever way to do this. I suppose that I could create the PDF, find out the number of pages, then have a second pass in which the R script was fed the number of pages. However, there is one disadvantage to this -- the original PDF contains a timestamp on each page -- the new version would have a different timestamp -- so I would prefer to not use this approach. > >Has anyone thought of some terribly clever way to solve this problem? > >Dennis > >Dennis Fisher MD >P < (The "P Less Than" Company) >Phone / Fax: 1-866-PLessThan (1-866-753-7784) >www.PLessThan.com > >______________________________________________ >R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see >https://stat.ethz.ch/mailman/listinfo/r-help >PLEASE do read the posting guide http://www.R-project.org/posting-guide.html >and provide commented, minimal, self-contained, reproducible code.-- Sent from my phone. Please excuse my brevity.
https://community.rstudio.com/t/total-number-of-pages-in-quarto-pdf/177316/2 On Sat, 2 Dec 2023 at 09:39, Dennis Fisher <fisher at plessthan.com> wrote:> OS X > R 4.3.1 > > Colleagues > > I often create multipage PDFs [pdf()] in which the text "Page X" appears > in the margin. These PDFs are created automatically using a massive R > script. > > One of my clients requested that I change this to: > Page X of XX > where XX is the total number of pages. > > I don't know the number of expected pages so I can't think of any clever > way to do this. I suppose that I could create the PDF, find out the number > of pages, then have a second pass in which the R script was fed the number > of pages. However, there is one disadvantage to this -- the original PDF > contains a timestamp on each page -- the new version would have a different > timestamp -- so I would prefer to not use this approach. > > Has anyone thought of some terribly clever way to solve this problem? > > Dennis > > Dennis Fisher MD > P < (The "P Less Than" Company) > Phone / Fax: 1-866-PLessThan (1-866-753-7784) > www.PLessThan.com > > ______________________________________________ > R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. >-- John Kane Kingston ON Canada [[alternative HTML version deleted]]
Having read all of the replies, it seems there are solutions for the question and the OP points out that some solutions such as making the document twice will affect the creation date. I suspect the additional time to do so is seconds or at most minutes so it may not be a big deal. But what about the idea of creating a PDF with a placeholder like "Page N of XXX" and after the file has been created, dates and all, perhaps edit it programmatically and replace all instances of XXX with something of the same length like " 23" as there seem to be tools like the pdftools package that let you get the number of pages. I have no idea if some program, perhaps external, can do that and retain the date you want. -----Original Message----- From: R-help <r-help-bounces at r-project.org> On Behalf Of Dennis Fisher Sent: Friday, December 1, 2023 3:53 PM To: r-help at r-project.org Subject: [R] adding "Page X of XX" to PDFs OS X R 4.3.1 Colleagues I often create multipage PDFs [pdf()] in which the text "Page X" appears in the margin. These PDFs are created automatically using a massive R script. One of my clients requested that I change this to: Page X of XX where XX is the total number of pages. I don't know the number of expected pages so I can't think of any clever way to do this. I suppose that I could create the PDF, find out the number of pages, then have a second pass in which the R script was fed the number of pages. However, there is one disadvantage to this -- the original PDF contains a timestamp on each page -- the new version would have a different timestamp -- so I would prefer to not use this approach. Has anyone thought of some terribly clever way to solve this problem? Dennis Dennis Fisher MD P < (The "P Less Than" Company) Phone / Fax: 1-866-PLessThan (1-866-753-7784) www.PLessThan.com ______________________________________________ R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.