Changes in version 0.4.0 (2021-10-02)                  

  - renamed expr and str to .expr and .str in all the gen.... functions
    to allow variables like s and e (fixes
    https://github.com/patrickroocks/listcompr/issues/7)
  - allow (x_1, ..., x_n) short-cuts in nested expressions
  - allow a_i placeholders within nested vector and list expressions
  - improved warnings/error messages
  - fixed infinite recursion occurring when a NULL variable range was
    given
  - fix auto-generated column names in a data frame for c(a, c)

                 Changes in version 0.3.0 (2021-06-09)                  

  - modified internal conversion from lists to data frames in
    gen.data.frame such that non-fundamental types are accepted (fixes
    https://github.com/patrickroocks/listcompr/issues/5)
  - added a check to ensure that the inner expression for
    gen.(named).(data.frame|matrix) must be exactly one row
  - some output format fixes (data frames and matrices where sometimes
    mixed up)
  - added byrow parameter to gen.(named).(data.frame|matrix) which
    applies the Cartesian product by column to the expression
  - fixed that gen.named.(vector|list) can be used as an inner
    expression of other gen.-functions
  - gen.list and similar functions accept characters with placeholders,
    removed gen.list.char and gen.vector.char
  - changed order of dimensions in gen.matrix for auto-detected 2-dim
    matrix
  - gen.matrix automatically searches for two dimensions in the ...
    arguments
  - fixed missing column names in gen.named.data.frame
  - added gen.matrix and gen.named.matrix for generating (named)
    matrices

                 Changes in version 0.2.0 (2021-04-02)                  

  - variable ranges can also be of character type (fixes
    https://github.com/patrickroocks/listcompr/issues/1)
  - fixed sorting of free variables (fixes
    https://github.com/patrickroocks/listcompr/issues/2)
  - auto-detect column names when generating data frames where a symbol
    is in the base expression
  - fixed missing export of gen.logical.or, added example to the
    vignette
  - allow substitutions in the list comprehension arguments

                 Changes in version 0.1.0 (2021-01-13)                  

  - first version of the listcompr package