vec_map_strict: Strictly apply a function to each element of a vector

In DavisVaughan/vcturrrs: Combining the Iteration of 'purrr' With the Type Stability of 'vctrs'

Description

vec_map_strict() is vec_map(), but without the common type determination. You must supply a .ptype for vec_map_strict(), and NULL is not allowed.

Usage

vec_map_strict(.x, .f, ..., .ptype = list())

Arguments

.x	A list or atomic vector.
.f	A function, formula, or vector (not necessarily atomic). If a function, it is used as is. If a formula, e.g. ~ .x + 2, it is converted to a function. There are three ways to refer to the arguments: For a single argument function, use . For a two argument function, use .x and .y For more arguments, use ..1, ..2, ..3 etc This syntax allows you to create very compact anonymous functions. If character vector, numeric vector, or list, it is converted to an extractor function. Character vectors index by name and numeric vectors index by position; use a list to index by position and name at different levels. If a component is not present, the value of .default will be returned.
...	Additional arguments passed on to the mapped function.
.ptype	A prototype for the output container.

DavisVaughan/vcturrrs documentation built on June 17, 2019, 12:01 a.m.