Installing R and RStudio Server in Ubuntu Linux 20.04

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R is a language and environment for statistical computing and graphics, providing a wide variety of statistical and graphical techniques. The R environment is open source software under GPL. R has rich software packages and is widely used for statistical analysis. RStudio Server is an R integrated development environment (IDE) that provides many useful features
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Latex is stuck with a strange problem, see more information for details.

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$ make pdflatex main.tex This is pdfTeX, Version 3.14159265-2.6-1.40.16 (TeX Live 2015/Debian) (preloaded format=pdflatex) restricted write18 enabled. entering extended mode (./main.tex LaTeX2e <2016/02/01> Babel <3.9q> and hyphenation patterns for 81 language(s) loaded. (/usr/share/texlive/texmf-dist/tex/latex/base/article.cls Document Class: article 2014/09/29 v1.4h Standard LaTeX document class (/usr/share/texlive/texmf-dist/tex/latex/base/size10.clo)) (./usenix.sty (/usr/share/texlive/texmf-dist/tex/latex/psnfss/mathptmx.sty)) (/usr/share/texlive/texmf-dist/tex/latex/graphics/epsfig.sty (/usr/share/texlive/texmf-dist/tex/latex/graphics/graphicx.sty (/usr/share/texlive/texmf-dist/tex/latex/graphics/keyval.sty) (/usr/share/texlive/texmf-dist/tex/latex/graphics/graphics.sty (/usr/share/texlive/texmf-dist/tex/latex/graphics/trig.sty) (/usr/share/texlive/texmf-dist/tex/latex/latexconfig/graphics.cfg) (/usr/share/texlive/texmf-dist/tex/latex/pdftex-def/pdftex.def (/usr/share/texlive/texmf-dist/tex/generic/oberdiek/infwarerr.sty) (/usr/share/texlive/texmf-dist/tex/generic/oberdiek/ltxcmds.sty))))) (/usr/share/texlive/texmf-dist/tex/generic/oberdiek/ifpdf.sty)
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Why do I need to run latex/bibtex three times to make everything look good?

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Why does latex need to be executed 3 times like following? pdflatex main.tex bibtex main pdflatex main.tex pdflatex main.tex Copied from https://tex.stackexchange.com/questions/53235/why-does-latex-bibtex-need-three-passes-to-clear-up-all-warnings. The reason is as follows: 1, At the first latex run, all cite{…} arguments are written in the file document.aux. 2, At the bibtex run, this information is taken by bibtex and the
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How to compress lists of consecutive citation numbers to one range in Latex?

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How to compress lists of consecutive citation numbers to one number range in Latex? For example, change [14], [15], [16], [17], [19] to [14-17], [19] That will save some space for the paper/document written in latex. The cite package is great from my experience. You just need to add usepackage{cite} in the document’s preamble and
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How to generate reference of web pages in the IEEE citation format with bibtex?

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How to generate reference of web pages in the IEEE citation format with bibtex? From the IEEE Citation Reference, the reference for web page is like this: WWW Basic Format: [1] J. K. Author. (year, month day). Title (edition) [Type of medium]. Available: http://www.(URL) Example: [1] J. Jones. (1991, May 10). Networks (2nd ed.) [Online].
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Ghostscript reports “Unrecoverable error: stackunderflow in .setdistillerparams”

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With the command -dPDFSETTINGS=/print for ps2pdf, I got: GPL Ghostscript 9.10: Set UseCIEColor for UseDeviceIndependentColor to work properly. Unrecoverable error: stackunderflow in .setdistillerparams make: *** [pdf-print] Error 255 How to fix it? I use this workaround: ps2pdf -dColorConversionStrategy=/LeaveColorUnchanged -dPDFSETTINGS=/printer psfile.ps from this. An alternative is to use -dPDFSETTINGS=/prepress.

svn: how to clean up my repository directory?

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I have a local svn repository. I work in the repository, e.g. compiling latex documents and building software packages, and there are many useless temporary files there. How can I clean it up by automatically clean these temporary files like the git clean -f in git? svn seems has no built-in function for this. But
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How to install the caption latex package on Fedora?

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I got a message: Package subcaption Error: `caption’ package not loaded I guess that I should install the cpaton package. How to install the caption latex package on Fedora? Fedora 19 is already shipped with the latex Tex Live 2013. You can directly install it by yum. # yum install texlive-caption For older Fedora releases,
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Squeezing Space in LaTeX – SysTutorials QA

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How to squeeze space in Latex? A good tutorial about “squeezing space in LaTex” in here from the Cambridge University’s website: http://www.eng.cam.ac.uk/help/tpl/textprocessing/squeeze.html These settings work great for me: setlength{textfloatsep}{1pt} setlength{abovecaptionskip}{1pt} setlength{belowcaptionskip}{1pt} A more aggressive configuration to squeeze space in a LaTex doc: % save space usepackage{enumitem} setlist{nolistsep} % no space between refs usepackage{bibspacing} setlength{bibspacing}{baselineskip} usepackage[small,compact]{titlesec}
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How to compile Latex on Linux

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How to compile Latex on Linux, and what’s the needed packages? On Fedora, the packages needed can be simply installed via: # yum install texlive* dvipdfmx To compile a latex document (say doc.tex) with bibtex used: $ latex doc $ bibtex doc $ latex doc $ latex doc $ dvips doc.dvi $ ps2pdf doc.ps The
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IEEEtran BibTex style

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How to install install the IEEEtran BibTex style in Fedora? IEEEtran.bst is the official BibTeX style for authors of the Institute of Electrical and Electronics Engineers (IEEE) Transactions journals and conferences. http://www.ctan.org/tex-archive/macros/latex/contrib/IEEEtran/bibtex/ How to install it on Fedora 17: # yum install tetex-IEEEtran An example of using it: bibliographystyle{IEEEtran} bibliography{IEEEabrv,ref}

How to convert a ps file to a pdf file

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How to convert a ps file to a pdf file that is available for publish (embedded fonts, etc)? Convert the file.ps ps file to file.pdf: $ ps2pdf -dPDFSETTINGS=/printer file.ps file.pdf</pre> Embedding Fonts in PDFs with pdflatex by Jeffrey P. Bigham: http://www.manticmoo.com/articles/jeff/programming/latex/embedding-fonts-with-pdflatex.php

Vim Howtos and Tips

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Vim is a fast and handy editor on *nix systems. Like Emacs, Vim has a steep learning curve as you get constantly get new things. However, the effort deserves it as you efficiency is highly improved. Here, I summarize the tips and howtos I learned using Vim. Some previous posts on vim are tagged with
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Latex Cheat Sheet

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Latest has many commands and it is not easy to quickly remember them all. Then, a cheat sheet will be very useful. Here is a collection of cheat sheets for Latex that I collected from the Web. Latex cheat sheet Latex cheat sheet by Winston Chang: Download latex cheat sheet. LaTeX Math Symbols https://web.archive.org/web/20190707092927/http://web.ift.uib.no/Teori/KURS/WRK/TeX/symALL.html