# Vector Helpers

## Documentation for package ‘vctrs’ version 0.2.3

- DESCRIPTION file.
- User guides, package vignettes and other documentation.

## Help Pages

%0% | Default value for empty vectors
as_list_of | 'list_of' S3 class for homogenous lists
internal-faq-ptype2-identity | Internal FAQ - 'vec_ptype2()', 'NULL', and unspecified vectors
is_list_of | 'list_of' S3 class for homogenous lists
list_of | 'list_of' S3 class for homogenous lists
name_spec | Name specifications
partial_factor | Partially specify a factor
partial_frame | Partially specify columns of a data frame
validate_list_of | 'list_of' S3 class for homogenous lists
vec_assert | Assert an argument has known prototype and/or size
vec_as_names | Retrieve and repair names
vec_bind | Combine many data frames into one data frame
vec_c | Combine many vectors into one vector
vec_cast.vctrs_list_of | 'list_of' S3 class for homogenous lists
vec_cbind | Combine many data frames into one data frame
vec_chop | Repeatedly slice a vector
vec_compare | Compare two vectors
vec_count | Count unique values in a vector
vec_data | Extract underlying data
vec_default_cast | Default cast method
vec_duplicate | Find duplicated values
vec_duplicate_any | Find duplicated values
vec_duplicate_detect | Find duplicated values
vec_duplicate_id | Find duplicated values
vec_equal | Test if two vectors are equal
vec_equal_na | Test if two vectors are equal
vec_in | Find matching observations across vectors
vec_init | Initialize a vector
vec_init_along | Useful sequences
vec_is | Assert an argument has known prototype and/or size
vec_is_empty | Number of observations
vec_is_list | Is the object a list?
vec_match | Find matching observations across vectors
vec_order | Order and sort vectors
vec_proxy | Extract underlying data
vec_ptype | Find the prototype of a set of vectors
vec_ptype2.vctrs_list_of | 'list_of' S3 class for homogenous lists
vec_ptype_common | Find the prototype of a set of vectors
vec_ptype_show | Find the prototype of a set of vectors
vec_rbind | Combine many data frames into one data frame
vec_recycle | Vector recycling
vec_recycle_common | Vector recycling
vec_repeat | Expand the length of a vector
vec_seq_along | Useful sequences
vec_size | Number of observations
vec_size_common | Number of observations
vec_sort | Order and sort vectors
vec_split | Split a vector into groups
vec_unique | Find and count unique values
vec_unique_count | Find and count unique values
vec_unique_loc | Find and count unique values