knitr
Department of Statistics, Iowa State University
MBSW 2013 @ Ball State University
Warning
This is really a serious talk disguised in many animated GIF's.
So you cut-and-paste?
Then you'll be in trouble
The key idea
Report = Narrative + Code
A simple demo
Markdown + R
Motivation
- TA: grading homework
- instructor: painful to teach LaTeX
- student: endless cut-and-paste
Changing just a tiny little bit in my LaTeX tabular
Sweave
Sweave is an extremely important contribution to reproducible research
Sweave ≈ LaTeX + R
the idea is fantastic, but when a student sees LaTeX
Change
same model, different appearance
Same idea, more choices
- Authoring languages
- LaTeX
- HTML
- Markdown
- reStructuredText
- ...
- Computing languages
- R
- Python
- shell scripts
- C++ (Rcpp)
- ...
Demo
Applications
- Books
- Websites
- Courses, workshops, papers, blog posts, ...
- R (3.0.0) package vignettes
- the new meanings of R CMD build and an R package
Learn knitr?
-
install.packages('knitr')
- https://yihui.org/knitr
- watch the video to get started
Acknowledgement
- https://github.com/yihui/knitr/contributors
- packageDescription('knitr', fields = 'Authors@R')
- https://github.com/yihui/knitr/issues
- http://stackoverflow.com/questions/tagged/knitr
- RStudio, LyX, Emacs/ESS, ...
- Nan Xiao (for most animated GIF's)
Questions?
image via