• Modifies the behavior of how the levels and labels for outcome and censors are created. The levels/labels follow the following rules:
    1. If a named list (all elements must be uniquely named) is passed to outcomes (or censors) and all the vectors have short labels, then the list names are the levels and the short labels become the labels.
    2. If a named list is passed to outcomes (or censors) and any of the vectors are missing short labels, then the list names become the levels and the labels.
    3. If a unnamed list is passed and all the vectors have internal names and all the vectors have short labels, then the internal names are the levels and the short labels become the labels.
    4. If a unnamed list is passed and all the vectors have internal names any of the vectors are missing short labels, then the internal names become the levels and labels.
    5. Otherwise, as.character(1:length(x)) become the levels and labels, where length(x) is the number of list elements.
  • Makes using v_continuous and v_continuous_nonneg as the w argument to weight possible.
  • Adds several assertions to v_rcensored to catch invalid inputs and provide more helpful error messages.
  • Adds the package version of stype under which a stype vector was created as an attribute. This is included for future compatibility checking when comparing vectors in the case they were created under different versions of stype that don’t play nice together.
  • Adds an internal new_stype_vctr function to streamline the creation of new stype vectors, ensuring they all share a common set of attributes.
  • Removes v_character type.
  • Adds a v_proportion types with values in [0. 1], which inherits from v_continuous_nonneg.
  • Removes v_event_time type.
  • The v_rcensored type now takes v_continuous_nonneg vectors instead of v_event_time. More importantly, NA values are no longer accepted as inputs to v_rcensored. To indicate that an observation has not yet been observed use Inf.
  • Adds the auto_compute_summary argument to stype v_* constructors. When TRUE, data summaries are automatically computed when a vector is created or restored (e.g. on subset or c()). When FALSE, data summaries are only computed when the user asks for a data summary. The default is TRUE, though this may change in the future.
  • Adds and updates Summary/Math/Arithmetic functions for v_continous, v_continuous_nonneg, v_binary, v_proportion, and v_count. See the stype math vignette for a complete list of all available functions and the respective domains/codomains of the functions.
  • Adds the ptableNoNA descriptor to categoricalDescriptors which summarizes a table excluding NA values.
  • Updates the function signature for as_Surv to take a new formal argument multiple_endpoint which defaults to FALSE. Previous versions always returned data in a multiple endpoints format (see the object documentation for survival::Surv for a definition) when censor_as_event was FALSE, so this is a breaking change.
  • Adds a function pmin_v_rcensored that can be used to combine multiple v_rcensored objects into a new v_rcensored object.
  • Adds the following constructor synonyms:
    • bnry : v_binary
    • cnt : v_count
    • chr : v_character
    • cont : v_continuous
    • nneg : v_continuous_nonneg
    • tmev : v_event_time
    • nom : v_nominal
    • ord : v_ordered
    • rcen : v_rcensored
  • Fixes bug in * and + where (e.g) v_binary(c(FALSE, TRUE, FALSE, TRUE)) + c(1, 3, 3, 5) now returns an error.
  • Adds an experimental tbl_analysis type, which includes the basic utilities of a stype such as a context and data_summary. It also includes a modifiers argument which is a list of functions sequentially modify the table. These functions are applied whenever the table is subset, and thus can act to define analytic workflows that should be run whenever a table is modified. This feature is experimental and will be tested internally at NoviSci before being further developed.

Major Changes

  • Depends on vctrs 0.3.0.
  • Constructors of stypes have an extra_descriptors argument for passing a listof descriptor function.
  • The purpose class now has a tags slot, so stype vectors can be tagged with arbitrary character vectors. The is_tagged function can be used to check if a vector is tagged with a string; e.g. is_tagged(x, tags = c("tag1", "tag2")) checks if x has either "tag1" or "tag2".
  • Now featuring lenses! See the lenses vignette for examples of getting/setting parts of stype vector or getting/setting several stypes within a list-like structure.
  • A weight function is available for updating the data_summary of stypes with vector of weights. See the weighting vignette for example of usage.
  • Adds a get_data_summaries function to access the data_summary from multiple stypes in a list or data.frame.

Minor changes

  • Adds a sort method for v_rcensored.

Major changes

  • The v_binary type now has logical or and and operators: |(or +) and & (or *). Unlike | and & for the logical type, logical operators for v_binary do not recycle values. That is, for two vectors x and y, they must either have the same size or either x or y must a scalar.