compact: Drop NULL elements from a list
In basetable: Fast and Memory-Efficient Base R Table Manipulation
compact R Documentation
Drop NULL elements from a list
Description
Remove every NULL element of .x, keeping the rest (including other
falsy-but-not-NULL values like NA, 0, or ""). The common companion
to map() when some calls legitimately return nothing – e.g. an empty
API response – and the NULLs must be dropped before foldr(),
rbindfill(), or similar.
Usage
compact(.x)
Arguments
.x
A list.
Value
.x with its NULL elements removed.
Examples
compact(list(1, NULL, 2, NULL, 3))
compact(list(a = 1, b = NULL, c = NA))
basetable documentation built on Sept. 18, 2026, 9:13 a.m.
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| compact | R Documentation |
Drop NULL elements from a list
Description
Remove every NULL element of .x, keeping the rest (including other
falsy-but-not-NULL values like NA, 0, or ""). The common companion
to map() when some calls legitimately return nothing – e.g. an empty
API response – and the NULLs must be dropped before foldr(),
rbindfill(), or similar.
Usage
compact(.x)
Arguments
.x |
A list. |
Value
.x with its NULL elements removed.
Examples
compact(list(1, NULL, 2, NULL, 3))
compact(list(a = 1, b = NULL, c = NA))
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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