R Markdown

R Markdown is an authoring format that enables easy creation of dynamic documents, presentations, and reports from R. It combines the core syntax of markdown (an easy-to-write plain text format) with embedded R code chunks that are run so their output can be included in the final document. R Markdown documents are fully reproducible (they can be automatically regenerated whenever underlying R code or data changes).

Meditation experiment personal observations 208680d2-3ed5-2a34-6dab-6a8f91899255

Insufficient sleep results in cognitive fatigue.
Insufficient hydration and sustenance results in physcial fatigue.
Insufficient physical strength and cardiovascular investment/exercise results in both.
Cognitive and physical fatigue seem to hamper the practice of meditation and generally contribute to having a “bad day”.

Problems installing (M)ELPA packages

In Problems installing (M)ELPA packages Sebastien wrote:

While using `package.el’ fulfills a long-awaited dream for easily adding and upgrading Emacs libraries, I now feel upgrading packages is much more complex than what I anticipated.
At least two of the packages I use daily (Org and Helm) require to be installed from inside a fresh Emacs session (emacs -Q), where nothing has been loaded.

I had wondered but never found out why one must follow this approach when installing org from scratch. Good to know!