Is R running interactively?
Like base::interactive(), is_interactive() returns TRUE when
the function runs interactively and FALSE when it runs in batch
mode. It also checks, in this order:
The rlang_interactive global option. If set to a single TRUE
or FALSE, is_interactive() returns that value immediately. This
escape hatch is useful in unit tests or to manually turn on
interactive features in RMarkdown outputs.
Whether knitr or testthat is in progress, in which case
is_interactive() returns FALSE.
with_interactive() and local_interactive() set the global
option conveniently.
is_interactive() local_interactive(value = TRUE, frame = caller_env()) with_interactive(expr, value = TRUE)
value |
A single |
frame |
The environment of a running function which defines the scope of the temporary options. When the function returns, the options are reset to their original values. |
expr |
An expression to evaluate with interactivity set to
|
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