relax: relax – R Editor for Literate Analysis and lateX. package relax contains some functions for report writing, presentation, and programming: relax(), tangleR(), weaveR(), (g)slider(). ”relax” is written in R and Tcl/Tk. relax creates a new window (top level Tcl/Tk widget) that consists of two text fields and some buttons and menus. Text (chunks) and code (chunks) are inserted in the upper text field (report field). Code chunks are evaluated by clicking on EvalRCode. Results are shown in the lower text field (output field) and will be transferred to the report field by pressing on Insert. In this way you get correct reports. These reports can be loaded again in cause of presentation, modification and result checking. tangleR() and weaveR() implement a plain kind of tangling and weaving. gslider() and slider() are designed to define sliders for interactive experiments in a simple way. The syntax rules of code chunks and text chunks are defined by the noweb system proposed by Norman Ramsey ( nr/noweb/intro.html).

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  1. Wolf, Hans Peter: A short history of statistical instruments: from pencil over R to relax (2014)