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Range based subsetting, e.g. sset(x, 1:10)
should
now be faster.
New functions val_count
and which_val
for common scalar operations.
Some functions gain a ‘names’ argument.
Replaced calls to STRING_PTR
with
STRING_PTR_RO
to satisfy R package check results.
lag_
should now be somewhat faster.
Fixed a small bug in lag2_
that would produce
incorrect results when supplying a vector of lags and an order
vector.
A signed integer overflow bug in lag2_
has been
fixed. This occurred when supplying NA
lags.
lag2_
no longer fills the names of named vectors
when the fill
value is supplied.
New function recycle
to help recycle R objects to a
common size.
The set
functions that update by reference are now
ALTREP aware and take a copy when the input is an ALTREP
object.
New function lag2_
as a generalised solution for
complex lags. It supports dynamic lag vectors, lags using an order
vector, and custom run lengths. It doesn’t support updating by reference
or long vectors.
New function lag_
for very fast lags and leads on
vectors and data frames. It includes a set
argument
allowing users to create a lagged vector by reference without
copies.
set_round
has been amended to improve floating point
accuracy.
New ‘set’ Math operations inspired by ‘data.table’ and ‘collapse’ that transform data by reference.
Fixed an inconsistency of when sequence_()
would
error when supplied with a zero-length size argument.
Fixed a protection stack imbalance in count_val(x)
when x
is NULL
.
sset
has been optimised for wide data frames with
many variables. It is also faster when applied to a data frame with
dates, date-times and factors.
In sset
, when i
is a logical vector it
must match the length of x.
sset
can now handle ‘ALTREP’ compact real sequences
as well.
sset
is now parallelised when i
is an
‘ALTREP’ compact integer sequence,
e.g. sset(x, 1:10)
.
sset
now has an internal range-based subset method
for ‘ALTREP’ integer sequences made using :
for
example.
New function count_val
as a cheaper alternative to
e.g. sum(x == val)
.
Negative indexing in sset
has been improved. It is
also now partially parallelised.
Setting recursive
to false should now be
faster.
‘overview’ objects gain an additional list element “print_digits” which is passed to the print method in order to correctly round the summary statistics without affecting the ‘cheapr.digits’ option globally.
factor_
and na_rm
now handle data
frames.
A bug in sset.data.table
that caused further set
calculations to produce warnings has been fixed.
is_na.POSIXlt
and sset.POSIXlt
have
been rewritten to handle unbalanced ‘POSIXlt’ objects.
New function sset
to consistently subset data frame
rows and vectors in general.
overview
now always returns an object of class
“overview”. It also returns the number of observations instead of rows
so that it makes sense for vector summaries as well as data frame
summaries.
sequence_
has been optimised and rewritten in C++.
It now only checks for integer overflow when both from
and
by
are integer vectors.
The internal function list_as_df
has been rewritten
in C++.
New function overview
as a cheaper alternative to
summary
.
All of the NA
handling functions now fall back to
using is.na
if an appropriate method cannot be
found.
More support has been added for all objects with an
is.na
method.
is_na
has been added as an S3 generic function which
is parallelised and internally falls back on is.na
if there
are no suitable methods.
Additional list utility functions have been added.
Limited support for vctrs_rcrd
objects has been
added again.
num_na
and similar functions no longer treat empty
data frame rows as single observations but instead return the total
number of NA
values in the data frame.
Fixed a bug in row_na_counts
and
col_na_counts
that would cause the session to crash when a
column variable was a list.
For the time being, vctrs ‘vctrs_rcrd’ objects are no longer supported though this support may be re-added in the future.
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.