Rdatatable / data.table

7 Pull requests merged by 2 people

• list columns in .SD copied too

  #4763 merged Oct 17, 2020

• copySharedColumns revised to fix CornerstoneR

  #4760 merged Oct 16, 2020

• copy altrep refs to specials too

  #4759 merged Oct 16, 2020

• reinstate README on CRAN

  #4757 merged Oct 13, 2020

• added ALTREP to _selfrefok

  #4756 merged Oct 13, 2020

• Fix building from source on Mac OSX

  #4743 merged Oct 13, 2020

• added test for POUMM ASAN error with 1.13.0

  #4755 merged Oct 13, 2020

4 Pull requests opened by 3 people

• improve %like% for factors

  #4750 opened Oct 11, 2020

• fread() throws correct non-ASCII messages

  #4751 opened Oct 11, 2020

• na.omit respects missing nanotime values

  #4752 opened Oct 12, 2020

• C data.table docs and minor rename

  #4753 opened Oct 12, 2020

7 Issues closed by 3 people

• Calculations with many groups are much slower by default than with setDTthreads(1)

  #4294 closed Oct 17, 2020

• Failed to extract grouped list values

  #4761 closed Oct 17, 2020

• Tests 2127.58 and 2127.59 failed under Rdevel-strict-clang with gctorture

  #4637 closed Oct 16, 2020

• ALTREP bug after adding >=64th column

  #4734 closed Oct 13, 2020

• After #4735, I can't build data.table on Mac from source

  #4742 closed Oct 13, 2020

• ASAN error with package POUMM

  #4746 closed Oct 13, 2020

• CI setup attempts to fetch from travis-ci.rstudio.org fails under bionic

  #4672 closed Oct 12, 2020

6 Issues opened by 5 people

• translation checks error on bash

  #4764 opened Oct 17, 2020

• as.matrix() of empty data.table wrong type (causing min() to fail on empty dt)

  #4762 opened Oct 16, 2020

• 1.13.2 release checks

  #4758 opened Oct 14, 2020

• reset truelength after coerce to data.frame

  #4754 opened Oct 12, 2020

• Difftime between Date and IDate columns

  #4749 opened Oct 10, 2020

• Pattern matching for character columns compared to Factor columns

  #4748 opened Oct 10, 2020

110 Unresolved conversations

Sometimes conversations happen on old items that aren’t yet closed. Here is a list of all the Issues and Pull Requests with unresolved conversations.

• add na.rm argument to first/last and gfirst/glast

  #4730 commented on Oct 15, 2020 • 13 new comments

• Merging by character columns is very slow

  #4733 commented on Oct 11, 2020 • 4 new comments

• na.strings="0" is not permitted in fread

  #2927 commented on Oct 13, 2020 • 3 new comments

• uniqueN() is very slow compared to length(unique())

  #3739 commented on Oct 17, 2020 • 3 new comments

• complete.cases does not work with nanotime

  #4744 commented on Oct 12, 2020 • 2 new comments

• Fread documentation

  #4745 commented on Oct 12, 2020 • 2 new comments

• join operation almost 2 times slower

  #3928 commented on Oct 11, 2020 • 1 new comment

• fread problem with different number of columns

  #1812 commented on Oct 17, 2020 • 1 new comment

• organisation of C exports

  #4504 commented on Oct 17, 2020 • 1 new comment

• lazy forder

  #4386 commented on Oct 17, 2020 • 1 new comment

• The msg from fread should mark txt as declared encoding

  #4747 commented on Oct 11, 2020 • 0 new comments

• C level access to setalloccol internal function alloccolwrapper

  #4439 commented on Oct 12, 2020 • 0 new comments

• GForce should be able to work with `:=` as well.

  #1414 commented on Oct 15, 2020 • 0 new comments

• forderv add grpsize attribute

  #4395 commented on Oct 15, 2020 • 0 new comments

• [R-Forge #2461] Faster version of Reduce(merge, list(DT1,DT2,DT3,...)) called mergelist (a la rbindlist)

  #599 commented on Oct 17, 2020 • 0 new comments

• [R-Forge #2296] Copy-on-:= at column level, DT[,list(...)] shallow copy and add cols to shallow(DT, cols)

  #617 commented on Oct 17, 2020 • 0 new comments

• [R-Forge #1984] Functional Queries

  #641 commented on Oct 17, 2020 • 0 new comments

• [R-Forge #1841] Implement a fast droplevels.data.table method.

  #647 commented on Oct 17, 2020 • 0 new comments

• [R-Forge #1757] Add drop to [.data.table, and "dontmove" to not put group columns first

  #648 commented on Oct 17, 2020 • 0 new comments

• Expand nomatch to accept any value (control fills, rolls, omits during joins)

  #857 commented on Oct 17, 2020 • 0 new comments

• Mixing use of data.frame and data.table in R 3.1+

  #710 commented on Oct 17, 2020 • 0 new comments

• setkeyv capable to reorder index

  #1158 commented on Oct 17, 2020 • 0 new comments

• setattr() creates a deep copy of the attribute object

  #1218 commented on Oct 17, 2020 • 0 new comments

• Various enhancements to print.data.table

  #1523 commented on Oct 17, 2020 • 0 new comments

• FR: auto-infer LHS of := when absent

  #1543 commented on Oct 17, 2020 • 0 new comments

• Any scope for rbindlapply?

  #1649 commented on Oct 17, 2020 • 0 new comments

• fread/fwrite *base data types* directly for efficiency

  #1656 commented on Oct 17, 2020 • 0 new comments

• join column naming with `on` syntax

  #1700 commented on Oct 17, 2020 • 0 new comments

• allow cross join in `[.data.table`

  #1717 commented on Oct 17, 2020 • 0 new comments

• unexpected round.IDate(x, 'week') behavior

  #2083 commented on Oct 17, 2020 • 0 new comments

• Can infinite values be supported in IDate?

  #2256 commented on Oct 17, 2020 • 0 new comments

• join vignette

  #2181 commented on Oct 17, 2020 • 0 new comments

• let j = c(prefix = lapply(.SD, f)) work when optimized

  #2311 commented on Oct 17, 2020 • 0 new comments

• fread/fwrite default options for NA mismatch

  #2281 commented on Oct 17, 2020 • 0 new comments

• export is.sorted

  #2325 commented on Oct 17, 2020 • 0 new comments

• Line numbers in error messages should refer to the raw file

  #2428 commented on Oct 17, 2020 • 0 new comments

• Why is SA2-by-DJZ-2011 re-reading?

  #2509 commented on Oct 17, 2020 • 0 new comments

• further manipulating x's columns during non-equi join returns NA (nomenclature issue?)

  #2569 commented on Oct 17, 2020 • 0 new comments

• improvement on programmatically substituting columns in expressions

  #2655 commented on Oct 17, 2020 • 0 new comments

• merge.data.table ignores incomparables without warnings.

  #2587 commented on Oct 17, 2020 • 0 new comments

• inconsistencies between merge.data.frame and merge.data.table

  #2593 commented on Oct 17, 2020 • 0 new comments

• warn or optimize usage of `ifelse()`

  #2677 commented on Oct 17, 2020 • 0 new comments

• setDT should be more careful on altering its input

  #2683 commented on Oct 17, 2020 • 0 new comments

• := together with by=.EACHI doesn't add new column if no rows match

  #2690 commented on Oct 17, 2020 • 0 new comments

• in fread integer64 argument is ignored if int64 type-bump occurs out-of-sample

  #2749 commented on Oct 17, 2020 • 0 new comments

• fastmean optimization is not used

  #2799 commented on Oct 17, 2020 • 0 new comments

• Possible regression for programmatic use in `j`

  #2816 commented on Oct 17, 2020 • 0 new comments

• Deprecating `with` argument makes expr column selector less obvious

  #2826 commented on Oct 17, 2020 • 0 new comments

• Overbroad issue about .. being defined in calling scope?

  #2988 commented on Oct 17, 2020 • 0 new comments

• Add introductory general principles to benchmarking vignette

  #3028 commented on Oct 17, 2020 • 0 new comments

• Encourage Imports not Depends

  #3076 commented on Oct 17, 2020 • 0 new comments

• fwrite: avoid converting matrix input to data.table

  #3188 commented on Oct 17, 2020 • 0 new comments

• DT[TRUE] can lead to invalid key

  #3215 commented on Oct 17, 2020 • 0 new comments

• Revisit 4 calls to fsort in data.table.R

  #3235 commented on Oct 17, 2020 • 0 new comments

• cutoff old information from FAQ

  #3275 commented on Oct 17, 2020 • 0 new comments

• Single-threaded grouping performance lower

  #3330 commented on Oct 17, 2020 • 0 new comments

• caugth segfault with fread() and tables(), memory not mapped (with TRY plant trait database)

  #3369 commented on Oct 17, 2020 • 0 new comments

• Room for new data.table cheat sheet on the homepage?

  #3374 commented on Oct 17, 2020 • 0 new comments

• export forder

  #3447 commented on Oct 17, 2020 • 0 new comments

• vignettes: timeseries - ordered observations

  #3453 commented on Oct 17, 2020 • 0 new comments

• names(.SD) := ... should work

  #795 commented on Oct 17, 2020 • 0 new comments

• implement guniqueN

  #1120 commented on Oct 17, 2020 • 0 new comments

• Allow alloc.col to modify a table in-place without making a shallow copy

  #1017 commented on Oct 17, 2020 • 0 new comments

• (some?) eval expressions have issues with :=

  #1181 commented on Oct 17, 2020 • 0 new comments

• dcast with empty data.table

  #1215 commented on Oct 17, 2020 • 0 new comments

• option max.print doesn't play nice with print.data.table

  #1421 commented on Oct 17, 2020 • 0 new comments

• Let DT[-integer(0)] return the full table

  #2133 commented on Oct 17, 2020 • 0 new comments

• Incomplete dox in `?setorder`

  #1920 commented on Oct 17, 2020 • 0 new comments

• Create an efficient unnest function

  #2146 commented on Oct 17, 2020 • 0 new comments

• "nomatch is ignored with :=" warning is misleading

  #2180 commented on Oct 17, 2020 • 0 new comments

• Add is.valid(DT) function

  #2334 commented on Oct 17, 2020 • 0 new comments

• dot alias not understood as expected in by/keyby

  #2447 commented on Oct 17, 2020 • 0 new comments

• get breaks .SDcols

  #2647 commented on Oct 17, 2020 • 0 new comments

• Add test that if getDTthreads()>=2 that omp_get_num_threads()>=2

  #3503 commented on Oct 17, 2020 • 0 new comments

• Add general warning to fread for integer64 columns

  #3611 commented on Oct 17, 2020 • 0 new comments

• coalesce vectors of type list

  #3712 commented on Oct 17, 2020 • 0 new comments

• which_equal, which_in

  #3663 commented on Oct 17, 2020 • 0 new comments

• Selecting from data.table by row is very slow

  #3735 commented on Oct 17, 2020 • 0 new comments

• GForce optimisation could be more smart

  #3815 commented on Oct 17, 2020 • 0 new comments

• New function: topn for efficiently doing sorted head/tail

  #3804 commented on Oct 17, 2020 • 0 new comments

• Export C level forder for use by other packages' C code

  #4015 commented on Oct 17, 2020 • 0 new comments

• Invalid .internal.selfref detected when a data.table is set as an attribute with setattr

  #3959 commented on Oct 17, 2020 • 0 new comments

• dt[, (cols) := list(...), by = group] should not silently recycles list

  #4022 commented on Oct 17, 2020 • 0 new comments

• Using gcc on macOS as the default compiler?

  #4016 commented on Oct 17, 2020 • 0 new comments

• Interface for melting data.frame?

  #4024 commented on Oct 17, 2020 • 0 new comments

• fwrite gzip on Solaris error

  #4099 commented on Oct 17, 2020 • 0 new comments

• Internal error: DT passed to assign has not been allocated enough column slots

  #4100 commented on Oct 17, 2020 • 0 new comments

• Proposal for a function to handle many small groups in some situations

  #4284 commented on Oct 17, 2020 • 0 new comments

• unique gives segfault from C stack overflow

  #4300 commented on Oct 17, 2020 • 0 new comments

• fread segfaults due to colClasses arg named vector

  #4337 commented on Oct 17, 2020 • 0 new comments

• Join with NA can alter the type of the column

  #4367 commented on Oct 17, 2020 • 0 new comments

• separate index attributes from index

  #4467 commented on Oct 17, 2020 • 0 new comments

• is.sorted is slow for determining whether jval is sorted by key

  #4498 commented on Oct 17, 2020 • 0 new comments

• sort-merge join

  #4538 commented on Oct 17, 2020 • 0 new comments

• Both columns for rolling and non-equi joins

  #3093 commented on Oct 17, 2020 • 0 new comments

• benchmarking vignette

  #3132 commented on Oct 17, 2020 • 0 new comments

• use look-up table in IDate conversion

  #3279 commented on Oct 17, 2020 • 0 new comments

• setkey reorder indices rather than drop

  #3304 commented on Oct 17, 2020 • 0 new comments

• format_col/format_list_item printing generics for customization

  #3414 commented on Oct 17, 2020 • 0 new comments

• uniqueN escape forder to base R for small atomic vectors, #1120

  #3743 commented on Oct 17, 2020 • 0 new comments

• detect and redirect ifelse usage in j to fifelse

  #3800 commented on Oct 17, 2020 • 0 new comments

• use typeof in print(class=TRUE)

  #3902 commented on Oct 17, 2020 • 0 new comments

• Allow C-level calls to forder

  #4017 commented on Oct 17, 2020 • 0 new comments

• Adds user-created parameters in fread's yaml

  #4123 commented on Oct 17, 2020 • 0 new comments

• Fast data.table to matrix conversion in C [Depends: #4196]

  #4144 commented on Oct 17, 2020 • 0 new comments

• dll name uses underscore

  #4442 commented on Oct 17, 2020 • 0 new comments

• sort-merge join

  #4539 commented on Oct 17, 2020 • 0 new comments

• cross join, #1717

  #4544 commented on Oct 17, 2020 • 0 new comments

• Custom variable columns using variable_table attribute

  #4731 commented on Oct 16, 2020 • 0 new comments

• WIP: vector support for fsetdiff/funion/fintersect and fsetequal

  #4738 commented on Oct 16, 2020 • 0 new comments