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fct_na_value_to_level() and
fct_na_level_to_value() to convert NA values to NA levels
and vice versa (#337).All functions now validate their inputs, giving more useful errors if you accidentally misspecify an input.
fct_collapse() can now use
other_level = NA (#291).
fct_count() works with factors that contain
NAs in levels.
fct_explicit_na() is deprecated in favour of
fct_na_value_to_level().
fct_expand() gains an after argument so
that you can choose where the new levels are placed (#138).
fct_infreq() gains the ability to weight by another
variable using the w argument (#261).
fct_inorder() now works when not all levels appear
in the data (#262).
fct_lump_prop() and friends now work correctly if
you supply weights and have empty levels (#292).
fct_lump_n() and fct_lump_prop() will
now create an “Other” level even if it only consists of a single level.
This makes them consistent with the other fct_lump_*
functions (#274).
fct_other() no longer generates a warning if no
levels are replaced with other (#265).
fct_relevel(), fct_cross(), and
fct_expand() now error if you name the arguments in
... since those names are ignored and your code probably
doesn’t do what you think it does (#319).
fct_reorder() and fct_reorder2() now
remove NA values in .x with a warning (like
ggplot2::geom_point() and friends). You can suppress the
warning by setting .na_rm = TRUE (#315).
fct_reorder() and fct_reorder2() gain a
new .default argument that controls the placement of empty
levels (including levels that might become empty after removing missing
values in .x) (#266).
fct_unique() now captures implicit missing values if
present (#293).
New fct() which works like factor() but
errors if values of x are not included in the levels
specification (#299)
first2() and last2() now ignore missing
values in both x and y (#303).
Error messages are more informative.
Re-license as MIT (#277).
fct_lump_n() no longer uses a partial argument name
(@malcolmbarrett, #276).
as_factor() gains a logical method that always
returns a factor with levels “FALSE” and “TRUE” (#185).
fct_c(), fct_collapse() and
fct_recode() are now explicitly documented as using dynamic dots
(@labouz,
#234).
fct_collapse() now accepts a
other_level argument, to allow a user-specified
Other level (@gtm19, #194). It now correctly collapses
factors when other_level is not NULL (#172),
and makes "Other" the last level (#202) (@gtm19, #172 &
#202)
fct_count() no longer converts implicit NAs into
explicit NAs (#151).
fct_inseq() behaves more robustly when factor levels
aren’t all numbers (#221).
fct_lump() has been split up into three new
functions: fct_lump_prop(), fct_lump_n(), and
fct_lump_lowfreq(). (@jonocarroll, #167, #142). All
fct_lump_() functions check their inputs more carefully
(@robinson_es,
#169)
fct_reorder2() gains a helper function
first2(), that sorts .y by the first value of
.x (@jtr13).
fct_collapse() gains a group_other
argument to allow you to group all un-named levels into
"Other". (#100, @AmeliaMN)
fct_cross() creates a new factor containing the
combined levels from two or more input factors, similar to
base::interaction (@tslumley, #136)
fct_inseq() reorders labels in numeric order, if
possible (#145, @kbodwin).
fct_lump_min() preserves levels that appear at least
min times (can also be used with the w
weighted argument) (@robinsones, #142).
fct_match() performs validated matching, providing a
safer alternative to f %in% c("x", "y") which silently
returns FALSE if "x" or "y" are
not levels of f (e.g. because of a typo) (#126, @jonocarroll).
fct_relevel() can now level factors using a function
that is passed the current levels (#117).
as_factor() now has a numeric method. By default,
orders factors in numeric order, unlike the other methods which default
to order of appearance. (#145, @kbodwin)
fct_count() gains a parameter to also compute the
proportion (@zhiiiyang, #146).
fct_lump() now does not change the label if no
lumping occurs (@zhiiiyang, #130).
fct_relabel() now accepts character input.
fct_reorder() and fct_reorder2() no
longer require that the summary function return a numeric vector of
length 1; instead it can return any orderable vector of length 1
(#147).
fct_reorder(), fct_reorder2() and
as_factor() now use the ellipsis package to warn if you
pass in named components to ... (#174).
fct_c() now requires explicit splicing with
!!! if you have a list of factors that you want to combine.
This is consistent with an emerging standards for handling
... throughout the tidyverse.
fct_reorder() and fct_reorder2() have
renamed fun to .fun to avoid spurious matching
of named arguments.
All functions that take ... use “tidy” dots: this
means that you use can !!! to splice in a list of values,
and trailing empty arguments are automatically removed. Additionally,
all other arguments gain a . prefix in order to avoid
unhelpful matching of named arguments (#110).
fct_lump() gains w argument (#70, @wilkox) to weight value
frequencies before lumping them together (#68).
as_factor() and fct_inorder() accept NA
levels (#98).
fct_explicit_na() also replaces NAs encoded in
levels.
fct_lump() correctly accounts for NA
values in input (#41)
lvls_revalue() preserves NA levels.
Test coverage increased from 80% to 99%.
fct_drop() now preserves attributes (#83).
fct_expand() and lvls_expand() now also
take character vectors (#99).
fct_relabel() now accepts objects coercible to
functions by rlang::as_function (#91, @alistaire47)
as_factor() which works like
as.factor() but orders levels by appearance to avoid
differences between locales (#39).
fct_other() makes it easier to convert selected
levels to “other” (#40)
fct_relabel() allows programmatic relabeling of
levels (#50, @krlmlr).
fct_c() can take either a list of factors or
individual factors (#42).
fct_drop() gains only argument to
restrict which levels are dropped (#69) and no longer adds
NA level if not present (#52).
fct_recode() is now checks that each new value is of
length 1 (#56).
fct_relevel() gains after argument so
you can also move levels to the end (or any other position you like)
(#29).
lvls_reorder(), fct_inorder(), and
fct_infreq() gain an ordered argument,
allowing you to override the existing “ordered” status (#54).
Minor fixes for R CMD check
Add package docs
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