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listcompr 0.4.0

• 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)

listcompr 0.3.0

• 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

listcompr 0.2.0

• 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

listcompr 0.1.0

• first version of the listcompr package

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.