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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.