For header arguments applicable to the buffer, use
anywhere in the Org mode file (see Property syntax).
The following example sets only for ‘R’ code blocks to
making all the ‘R’ code blocks execute in the same session. Setting
silent ignores the results of executions for all
blocks, not just ‘R’ code blocks; no results inserted for any block.
#+PROPERTY: header-args:R :session *R* #+PROPERTY: header-args :results silent
Header arguments set through Org’s property drawers (see Property syntax)
apply at the sub-tree level on down. Since these property drawers can appear
anywhere in the file hierarchy, Org uses outermost call or source block to
resolve the values. Org ignores
In this example,
:cache defaults to
yes for all code blocks in
the sub-tree starting with ‘sample header’.
* sample header :PROPERTIES: :header-args: :cache yes :END:
Properties defined through
org-set-property function, bound to
C-c C-x p, apply to all active languages. They override properties set