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Identical unit division and multiplication will now respect units_options(simplify = FALSE) reverting a change from #310; #355 @billdenney
Fix scale_units when both unit and trans are specified; #357
Names are preserved when doing unit conversions; #305 @billdenney
Identical units will always divide (/) and allow integer division (%/%). And, inverse units will always be able to multiply; #310 @billdenney
Compare units via ud_compare(), fixing inconsistent results for aliases and symbols; #339, #346, #347
Fix units<-() to treat an empty unit the same as NULL; #332
New as.data.frame() method for mixed_units; #309
Use short paths for database loading on Windows to fix UTF-16 issues; #342
Add example in the docs about reversing a ggplot2 units scale; #343
Force storage mode to double; #344 addressing #324
Fix units in transformed axis; #323
Consider unitless as radians in trigonometric functions; #328
fix %/% and %% if arguments have different units; #313
fix multiplier parsing for exp(log(x)) operations; #321
fix specification of secondary axes with scale_units; #326
enhance unit mapping for newly installed units; #290
remove deprecations: install_symbolic_unit, remove_symbolic_unit, install_conversion_constant, install_conversion_offset; #290
fix multipliers for round trip log-exp operations; #292
integrate ggplot2 scales (previously in the ggforce package) to automatically print axes with units; #294 addressing #164
fix all.equal.units for non-units current
fix zero power; #285
fix unique.units to support arrays and matrices, implement methods for duplicated and anyDuplicated
fix plot labels with spaces; #298 addressing #297
always add units to labels, including user-provided ones; as part of #298
new symbols/names with a percentage character are not allowed due to an upstream bug; #289
enhance pillar integration; #273, #275, #280 @krlmlr
new unique method for units and mixed_units objects; #283 addressing #277 @lewinfox
allow longer units grouping; #270 addressing #269 @bart1
fix regression in set_units method for mixed_units to ensure that ordering is preserved; #272 addressing #271
add load_units_xml to enable database reloading as well as loading user-provided unit systems; #254 addressing #243, #244
add install_unit and remove_unit for adding/removing custom user-defined symbols or names, with optional mapping to existing units; install_symbolic_unit, remove_symbolic_unit, install_conversion_constant, install_conversion_offset are deprecated; #261 addressing #89
add keep_units, a helper to apply functions that do not preserve units; #255 addressing #252
fix as_units(""), which is now equivalent to unitless; #199
fix plot axes for plot.formula and plot.data.frame; #213
fix arithmetic for powers above 1 and below -1; #264
improve arithmetic of logarithms; #249
export ud_are_convertible; #263 addressing #258 @cregouby
remove deprecations: as.units, as_cf, make_unit, parse_unit; #259
remove deprecated pre-computed ud_units database; #259
port isFALSE to fix regression in old R versions; #230 addressing #229
fix replacement operation for units objects; #233 addressing #232
fix compatibility with dplyr 1.0; #247 addressing #239
prettier str print for units and mixed units; #228 addressing #227
add compatibility with upcoming tibble v3.0.0; #225
fix support for weights with units in weighted.mean; #205
invalid names for new units now trigger a proper error message; #209 addressing #208
fix issues in strict latin1 environments; #202
improve platform dependent encodings handling; #183
don’t force as.numeric when unnecessary; #182 addressing #181
fix valgrind issues on CRAN and tidy up tests; #193 addressing #192
new method drop_units for data frames; #191 addressing #187
vectors with mixed units are now supported; #145
NA values for units now trigger a proper error message; #163
print units as [unit] more consistently, e.g. for single unit and in data.frames; #132
improve printing of unitless units; provide option to print something else than 1; #150
fix printing unitless in labels when negative_power is TRUE; #133
install_symbolic_unit now adds a dimensionless unit, integrated in the units system, meaning that prefixes on it work as well; #71
install_conversion_constant and install_conversion_offset now install a new unit that is a function of an existing udunits unit.; #71, #84
unit simplification can now be user-controlled by units_options; #89
set_units(15, mg/kg) is now no longer simplified to 1e-9 unitless; #89
directly uses the udunits2 C library; drop dependence on R package udunits2, fixing R package udunits2 memory leaks; #135
drops %*%, no longer gives warning when loading
deal with trigonometric functions for units degree; return units rad on inverse trigonometric functions.
Unit creation has been significantly refactored. units<- now accepts strings or quoted language objects on the right hand side, powered by new S3 methods for as_units. All valid unit symbols and unit names recognized by package ‘udunits2’ are now accepted. New user facing function make_units() (plural s) is also provided. See ?as_units for details. @t-kalinowski
new functions valid_udunits() and valid_udunits_prefixes() generate tidy dataframes listing all the valid unit names, symbols, and prefixes recognized by udunits. @t-kalinowski
new function install_symbolic_unit() for adding custom, user-defined units. @t-kalinowski
make_unit and parse_unit (singular unit) have been deprecated, please use as_units instead.
ud_units is no longer necessary and is soft-deprecated, and may be removed in a future release.
add %*% as an S3 generic; #54
add %% and %/% to Ops.units
support unary + and - ; #56
add seq method for units, converting units to those of the first argument
Deprecate as.dt for as_difftime, as.units for as_units and as_cf for deparse_unit
add all.equal method for units; #51
add deparse_unit to replace as_cf
add calender/time conversions between udunits time units like minutes from 1900-0-0, and R’s POSIXct and Date
add as_units to replace as.units
rename as.dt to as_difftime
add support for user-defined unit conversion; #31
allow for 1/n integer powers, as in set_units(1:10, m^-2) ^ 0.5; #29
properly set log units after log transform; #33
sin, cos and tan no longer complain when units is rad, and return unitless; #40
now allow for set_units(1:3, "°C") and also set_units(1:3, "degree_Celsius") by resolving names to symbols first; #43
set_units(x) with x numeric sets units to unitless; #41
fix a result units bug when multiplying or dividing units vectors of different length, #34
add a rep method for units vectors
set_units(1:10, m) which does not require to declare or define, m (m is resolved automatically from ud_units)These binaries (installable software) and packages are in development.
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