data.table 1.13.1 - en to en translation catalogue (166 entries)

en: ' (type character). Only valid character value is 'nearest'.
en: ‘ (type character). Only valid character value is ’nearest'.

en: ' and '..
en: ‘ and ’..

en: ' as value column. Use 'value.var' to override
en: ‘ as value column. Use ’value.var' to override

en: ' but the corresponding item of y is '
en: ‘ but the corresponding item of y is ’

en: ' does not exist or is non-readable. getwd()=='
en: ‘ does not exist or is non-readable. getwd()==’

en: ' exist in calling scope. Please remove the '..
en: ‘ exist in calling scope. Please remove the ’..

en: ' is type '
en: ‘ is type ’

en: ' to data.table by reference because binding is locked. It is very likely that '
en: ‘ to data.table by reference because binding is locked. It is very likely that ’

en: ' was requested to be '
en: ‘ was requested to be ’

en: '(m)get' found in j. ansvars being set to all columns. Use .SDcols or a single j=eval(macro) instead. Both will detect the columns used which is important for efficiency.
    Old ansvars: %s
en: ‘(m)get’ found in j. ansvars being set to all columns. Use .SDcols or a single j=eval(macro) instead. Both will detect the columns used which is important for efficiency.
    Old ansvars: %s

en: ') can not be character or logical types, but found incompatible type '
en: ‘) can not be character or logical types, but found incompatible type ’

en: ') is character, the corresponding column in y ('
en: ‘) is character, the corresponding column in y (’

en: ') is factor, the corresponding column in y ('
en: ‘) is factor, the corresponding column in y (’

en: ') is integer or numeric, the corresponding column in y ('
en: ‘) is integer or numeric, the corresponding column in y (’

en: ') should be character or factor, but found incompatible type '
en: ‘) should be character or factor, but found incompatible type ’

en: ') should be factor or character, but found incompatible type '
en: ‘) should be factor or character, but found incompatible type ’

en: '. Needs to be type 'character'.
en: ‘. Needs to be type ’character'.

en: 'autostart' is now deprecated and ignored. Consider skip='string' or skip=n
en: ‘autostart’ is now deprecated and ignored. Consider skip=‘string’ or skip=n

en: 'between' arguments are all POSIXct but have mismatched tzone attributes:
en: ‘between’ arguments are all POSIXct but have mismatched tzone attributes:

en: 'between' function the 'x' argument is a POSIX class while 'lower' was not, coercion to POSIX failed with:
en: ‘between’ function the ‘x’ argument is a POSIX class while ‘lower’ was not, coercion to POSIX failed with:

en: 'between' function the 'x' argument is a POSIX class while 'upper' was not, coercion to POSIX failed with:
en: ‘between’ function the ‘x’ argument is a POSIX class while ‘upper’ was not, coercion to POSIX failed with:

en: 'between' lower= and upper= are both POSIXct but have different tzone attributes:
en: ‘between’ lower= and upper= are both POSIXct but have different tzone attributes:

en: 'by' appears to evaluate to column names but isn't c() or key(). Use by=list(...) if you can. Otherwise, by=eval
en: ‘by’ appears to evaluate to column names but isn't c() or key(). Use by=list(...) if you can. Otherwise, by=eval

en: 'by' is a character vector length
en: ‘by’ is a character vector length

en: 'by' or 'keyby' must evaluate to a vector or a list of vectors (where 'list' includes data.table and data.frame which are lists, too)
en: ‘by’ or ‘keyby’ must evaluate to a vector or a list of vectors (where ‘list’ includes data.table and data.frame which are lists, too)

en: 'by.x' and 'by.y' should contain at least two column names (or numbers) each - corresponding to 'start' and 'end' points of intervals. Please see ?foverlaps and examples for more info.
en: ‘by.x’ and ‘by.y’ should contain at least two column names (or numbers) each - corresponding to ‘start’ and ‘end’ points of intervals. Please see ?foverlaps and examples for more info.

en: 'data' must be a data.table
en: ‘data’ must be a data.table

en: 'data' must be a data.table.
en: ‘data’ must be a data.table.

en: 'data.table' relies on the package 'yaml' to parse the file header; please add this to your library with install.packages('yaml') and try again.
en: ‘data.table’ relies on the package ‘yaml’ to parse the file header; please add this to your library with install.packages(‘yaml’) and try again.

en: 'data.table' relies on the package 'yaml' to write the file header; please add this to your library with install.packages('yaml') and try again.
en: ‘data.table’ relies on the package ‘yaml’ to write the file header; please add this to your library with install.packages(‘yaml’) and try again.

en: 'drop' must be logical TRUE/FALSE
en: ‘drop’ must be logical TRUE/FALSE

en: 'fromLast' must be TRUE or FALSE
en: ‘fromLast’ must be TRUE or FALSE

en: 'keep' should contain integer values between
en: ‘keep’ should contain integer values between

en: 'measure.vars' is given precedence.
en: ‘measure.vars’ is given precedence.

en: 'names' must be TRUE/FALSE or a character vector.
en: ‘names’ must be TRUE/FALSE or a character vector.

en: 'nearest', and 'ceil'.
en: ‘nearest’, and ‘ceil’.

en: 'new' is not a character vector or a function
en: ‘new’ is not a character vector or a function

en: 'old' is length
en: ‘old’ is length

en: 'old' is type
en: ‘old’ is type

en: 'on' argument should be a named atomic vector of column names indicating which columns in 'i' should be joined with which columns in 'x'.
en: ‘on’ argument should be a named atomic vector of column names indicating which columns in ‘i’ should be joined with which columns in ‘x’.

en: 'on' contains more than 2 column names:
en: ‘on’ contains more than 2 column names:

en: 'on' contains no column name:
en: ‘on’ contains no column name:

en: 'prefix' must be NULL or a character vector of length 1.
en: ‘prefix’ must be NULL or a character vector of length 1.

en: 'sets' contains a duplicate (i.e., equivalent up to sorting) element at index
en: ‘sets’ contains a duplicate (i.e., equivalent up to sorting) element at index

en: 'sorted' is TRUE but element
en: ‘sorted’ is TRUE but element

en: 'subset' must evaluate to logical
en: ‘subset’ must evaluate to logical

en: 'text=' is type
en: ‘text=’ is type

en: 'value.name' provided in both 'measure.vars'
en: ‘value.name’ provided in both ‘measure.vars’

en: 'x' and 'y' arguments are
en: ‘x’ and ‘y’ arguments are

en: 'x' argument is
en: ‘x’ argument is

en: 'xts' class passed to %s function but 'xts' is not available, you should have 'xts' installed already
en: ‘xts’ class passed to %s function but ‘xts’ is not available, you should have ‘xts’ installed already

en: 'y' argument is
en: ‘y’ argument is

en: 'y' must be keyed (i.e., sorted, and, marked as sorted). Call setkey(y, ...) first, see ?setkey. Also check the examples in ?foverlaps.
en: ‘y’ must be keyed (i.e., sorted, and, marked as sorted). Call setkey(y, ...) first, see ?setkey. Also check the examples in ?foverlaps.

en: . Each 'on' clause must contain one or two column names.
en: . Each ‘on’ clause must contain one or two column names.

en: Aggregate function missing, defaulting to 'length'
en: Aggregate function missing, defaulting to ‘length’

en: All columns used in 'sets' argument must be in 'by' too. Columns used in 'sets' but not present in 'by':
en: All columns used in ‘sets’ argument must be in ‘by’ too. Columns used in ‘sets’ but not present in ‘by’:

en: All elements in argument 'x' to 'setDF' must be of same length
en: All elements in argument ‘x’ to ‘setDF’ must be of same length

en: All elements in argument 'x' to 'setDT' must be of same length, but the profile of input lengths (length:frequency) is:
en: All elements in argument ‘x’ to ‘setDT’ must be of same length, but the profile of input lengths (length:frequency) is:

en: Argument 'by' must be a character vector of column names used in grouping.
en: Argument ‘by’ must be a character vector of column names used in grouping.

en: Argument 'by' must have unique column names for grouping.
en: Argument ‘by’ must have unique column names for grouping.

en: Argument 'by' must refer only to atomic-type columns, but the following columns are non-atomic:
en: Argument ‘by’ must refer only to atomic-type columns, but the following columns are non-atomic:

en: Argument 'by' must refer to column names in x
en: Argument ‘by’ must refer to column names in x

en: Argument 'encoding' must be 'unknown', 'UTF-8' or 'Latin-1'.
en: Argument ‘encoding’ must be ‘unknown’, ‘UTF-8’ or ‘Latin-1’.

en: Argument 'id' must be a logical scalar.
en: Argument ‘id’ must be a logical scalar.

en: Argument 'invert' must be logical TRUE/FALSE
en: Argument ‘invert’ must be logical TRUE/FALSE

en: Argument 'na.rm' must be scalar logical and non-NA
en: Argument ‘na.rm’ must be scalar logical and non-NA

en: Argument 'nan' must be NA or NaN
en: Argument ‘nan’ must be NA or NaN

en: Argument 'nan' must be length 1
en: Argument ‘nan’ must be length 1

en: Argument 'no.dups' should be logical TRUE/FALSE
en: Argument ‘no.dups’ should be logical TRUE/FALSE

en: Argument 'sets' must be a list of character vectors.
en: Argument ‘sets’ must be a list of character vectors.

en: Argument 'sort' should be logical TRUE/FALSE
en: Argument ‘sort’ should be logical TRUE/FALSE

en: Argument 'sorted' must be scalar logical and non-NA
en: Argument ‘sorted’ must be scalar logical and non-NA

en: Argument 'tolerance' was forced to lowest accepted value `sqrt(.Machine$double.eps)` from provided
en: Argument ‘tolerance’ was forced to lowest accepted value `sqrt(.Machine$double.eps)` from provided

en: Argument 'value.name' must be scalar character, non-NA and at least one character
en: Argument ‘value.name’ must be scalar character, non-NA and at least one character

en: Argument 'value.name' should not overlap with column names in result:
en: Argument ‘value.name’ should not overlap with column names in result:

en: Argument 'x' is a 0-column data.table; no measure to apply grouping over.
en: Argument ‘x’ is a 0-column data.table; no measure to apply grouping over.

en: Argument 'x' must be a data.table object
en: Argument ‘x’ must be a data.table object

en: Argument 'x' to 'setDT' should be a 'list', 'data.frame' or 'data.table'
en: Argument ‘x’ to ‘setDT’ should be a ‘list’, ‘data.frame’ or ‘data.table’

en: Character vectors in 'sets' list must not have duplicated column names within a single grouping set.
en: Character vectors in ‘sets’ list must not have duplicated column names within a single grouping set.

en: Column '.ll.tech.split' is reserved for split.data.table processing
en: Column ‘.ll.tech.split’ is reserved for split.data.table processing

en: Column '.nm.tech.split' is reserved for split.data.table processing
en: Column ‘.nm.tech.split’ is reserved for split.data.table processing

en: Column classes will be suppressed when col.names is 'none'
en: Column classes will be suppressed when col.names is ‘none’

en: Column name '_nqgrp_' is reserved for non-equi joins.
en: Column name ‘_nqgrp_’ is reserved for non-equi joins.

en: Combining a search string as 'skip' and reading a YAML header may not work as expected -- currently,
en: Combining a search string as ‘skip’ and reading a YAML header may not work as expected -- currently,

en: Datasets to compare with 'ignore.row.order' must not have unsupported column types:
en: Datasets to compare with ‘ignore.row.order’ must not have unsupported column types:

en: Either 'by' or 'f' argument must be supplied
en: Either ‘by’ or ‘f’ argument must be supplied

en: Elements listed in 'by.x' must be valid names in data.table 'x'
en: Elements listed in ‘by.x’ must be valid names in data.table ‘x’

en: Expression passed to grouping sets function must not update by reference. Use ':=' on results of your grouping function.
en: Expression passed to grouping sets function must not update by reference. Use ‘:=’ on results of your grouping function.

en: Found more than one operator in one 'on' statement:
en: Found more than one operator in one ‘on’ statement:

en: Input URL requires https:// connection for which fread() requires 'curl' package which cannot be found. Please install 'curl' using 'install.packages('curl')'.
en: Input URL requires https:// connection for which fread() requires ‘curl’ package which cannot be found. Please install ‘curl’ using ‘install.packages(’curl')'.

en: Input xts object should not have '%s' column because it would result in duplicate column names. Rename '%s' column in xts or use `keep.rownames` to change the index column name.
en: Input xts object should not have ‘%s’ column because it would result in duplicate column names. Rename ‘%s’ column in xts or use `keep.rownames` to change the index column name.

en: Internal error. 'cols' should be character at this point in setkey; please report.
en: Internal error. ‘cols’ should be character at this point in setkey; please report.

en: Invalid numeric value for 'by.x'; it should be a vector with values 1 <= by.x <= length(x)
en: Invalid numeric value for ‘by.x’; it should be a vector with values 1 <= by.x <= length(x)

en: Invalid numeric value for 'by.y'; it should be a vector with values 1 <= by.y <= length(y)
en: Invalid numeric value for ‘by.y’; it should be a vector with values 1 <= by.y <= length(y)

en: Items of 'old' not found in column names:
en: Items of ‘old’ not found in column names:

en: LHS of := isn't column names ('character') or positions ('integer' or 'numeric')
en: LHS of := isn't column names (‘character’) or positions (‘integer’ or ‘numeric’)

en: NA (or out of bounds) in 'old' at positions
en: NA (or out of bounds) in ‘old’ at positions

en: NA in 'new' at positions
en: NA in ‘new’ at positions

en: NA values in data.table 'x' end column: '
en: NA values in data.table ‘x’ end column: '

en: NA values in data.table 'x' start column: '
en: NA values in data.table ‘x’ start column: '

en: NA values in data.table 'y' end column: '
en: NA values in data.table ‘y’ end column: '

en: NA values in data.table 'y' start column: '
en: NA values in data.table ‘y’ start column: '

en: None of the datasets should contain a column named '.seqn'
en: None of the datasets should contain a column named ‘.seqn’

en: None of the datasets to compare should contain a column named '.seqn'
en: None of the datasets to compare should contain a column named ‘.seqn’

en: Option 'datatable.old.bywithoutby' has been removed as warned for 2 years. It is now ignored. Please use by=.EACHI instead and stop using this option.
en: Option ‘datatable.old.bywithoutby’ has been removed as warned for 2 years. It is now ignored. Please use by=.EACHI instead and stop using this option.

en: Option 'datatable.old.unique.by.key' has been removed as warned for 4 years. It is now ignored. Please use by=key(DT) instead and stop using this option.
en: Option ‘datatable.old.unique.by.key’ has been removed as warned for 4 years. It is now ignored. Please use by=key(DT) instead and stop using this option.

en: POSIXct interval cols have mixed timezones. Overlaps are performed on the internal numerical representation of POSIXct objects (always in UTC epoch time), therefore printed values may give the impression that values don't overlap but their internal representations do Please ensure that POSIXct type interval cols have identical 'tzone' attributes to avoid confusion.
en: POSIXct interval cols have mixed timezones. Overlaps are performed on the internal numerical representation of POSIXct objects (always in UTC epoch time), therefore printed values may give the impression that values don't overlap but their internal representations do Please ensure that POSIXct type interval cols have identical ‘tzone’ attributes to avoid confusion.

en: Please provide a name to each element of 'measure.vars'.
en: Please provide a name to each element of ‘measure.vars’.

en: Please provide either 'key' or 'sorted', but not both.
en: Please provide either ‘key’ or ‘sorted’, but not both.

en: Some columns are type 'integer64' but package bit64 is not installed. Those columns will print as strange looking floating point data. There is no need to reload the data. Simply install.packages('bit64') to obtain the integer64 print method and print the data again.
en: Some columns are type ‘integer64’ but package bit64 is not installed. Those columns will print as strange looking floating point data. There is no need to reload the data. Simply install.packages(‘bit64’) to obtain the integer64 print method and print the data again.

en: Some duplicates exist in 'old':
en: Some duplicates exist in ‘old’:

en: The column '.I' can't be grouped because it conflicts with the special .I variable. Try setnames(DT,'.I','I') first.
en: The column ‘.I’ can't be grouped because it conflicts with the special .I variable. Try setnames(DT,‘.I’,‘I’) first.

en: The column '.N' can't be grouped because it conflicts with the special .N variable. Try setnames(DT,'.N','N') first.
en: The column ‘.N’ can't be grouped because it conflicts with the special .N variable. Try setnames(DT,‘.N’,‘N’) first.

en: The items in the 'by' or 'keyby' list are length(s) (%s). Each must be length %d; the same length as there are rows in x (after subsetting if i is provided).
en: The items in the ‘by’ or ‘keyby’ list are length(s) (%s). Each must be length %d; the same length as there are rows in x (after subsetting if i is provided).

en: The last two columns in by.x should correspond to the 'start' and 'end' intervals in data.table 'x' and must be integer/numeric type.
en: The last two columns in by.x should correspond to the ‘start’ and ‘end’ intervals in data.table ‘x’ and must be integer/numeric type.

en: The last two columns in by.y should correspond to the 'start' and 'end' intervals in data.table 'y' and must be integer/numeric type.
en: The last two columns in by.y should correspond to the ‘start’ and ‘end’ intervals in data.table ‘y’ and must be integer/numeric type.

en: The option 'datatable.nomatch' is being used and is not set to the default NA. This option is still honored for now but will be deprecated in future. Please see NEWS for 1.12.4 for detailed information and motivation. To specify inner join, please specify `nomatch=NULL` explicitly in your calls rather than changing the default using this option.
en: The option ‘datatable.nomatch’ is being used and is not set to the default NA. This option is still honored for now but will be deprecated in future. Please see NEWS for 1.12.4 for detailed information and motivation. To specify inner join, please specify `nomatch=NULL` explicitly in your calls rather than changing the default using this option.

en: To read gz and bz2 files directly, fread() requires 'R.utils' package which cannot be found. Please install 'R.utils' using 'install.packages('R.utils')'.
en: To read gz and bz2 files directly, fread() requires ‘R.utils’ package which cannot be found. Please install ‘R.utils’ using ‘install.packages(’R.utils')'.

en: Unable to optimize call to mean() and could be very slow. You must name 'na.rm' like that otherwise if you do mean(x,TRUE) the TRUE is taken to mean 'trim' which is the 2nd argument of mean. 'trim' is not yet optimized.
en: Unable to optimize call to mean() and could be very slow. You must name ‘na.rm’ like that otherwise if you do mean(x,TRUE) the TRUE is taken to mean ‘trim’ which is the 2nd argument of mean. ‘trim’ is not yet optimized.

en: User-supplied 'dec' will override that found in metadata.
en: User-supplied ‘dec’ will override that found in metadata.

en: User-supplied 'header' will override that found in metadata.
en: User-supplied ‘header’ will override that found in metadata.

en: User-supplied 'na.strings' will override that found in metadata.
en: User-supplied ‘na.strings’ will override that found in metadata.

en: User-supplied 'quote' will override that found in metadata.
en: User-supplied ‘quote’ will override that found in metadata.

en: User-supplied 'sep' will override that found in metadata.
en: User-supplied ‘sep’ will override that found in metadata.

en: User-supplied column names in 'col.names' will override those found in YAML metadata.
en: User-supplied column names in ‘col.names’ will override those found in YAML metadata.

en: Using integer64 class columns require to have 'bit64' package installed.
en: Using integer64 class columns require to have ‘bit64’ package installed.

en: Valid options for col.names are 'auto', 'top', and 'none'
en: Valid options for col.names are ‘auto’, ‘top’, and ‘none’

en: Valid options for ms are 'truncate',
en: Valid options for ms are ‘truncate’,

en: When 'fun.aggregate' and 'value.var' are both lists, 'value.var' must be either of length =1 or =length(fun.aggregate).
en: When ‘fun.aggregate’ and ‘value.var’ are both lists, ‘value.var’ must be either of length =1 or =length(fun.aggregate).

en: When i is a data.table (or character vector), the columns to join by must be specified using 'on=' argument (see ?data.table), by keying x (i.e. sorted, and, marked as sorted, see ?setkey), or by sharing column names between x and i (i.e., a natural join). Keyed joins might have further speed benefits on very large data due to x being sorted in RAM.
en: When i is a data.table (or character vector), the columns to join by must be specified using ‘on=’ argument (see ?data.table), by keying x (i.e. sorted, and, marked as sorted, see ?setkey), or by sharing column names between x and i (i.e., a natural join). Keyed joins might have further speed benefits on very large data due to x being sorted in RAM.

en: When using `id=TRUE` the 'j' expression must not evaluate to a column named 'grouping'.
en: When using `id=TRUE` the ‘j’ expression must not evaluate to a column named ‘grouping’.

en: When using `id=TRUE` the 'x' data.table must not have a column named 'grouping'.
en: When using `id=TRUE` the ‘x’ data.table must not have a column named ‘grouping’.

en: ] are not found in 'data'.
en: ] are not found in ‘data’.

en: and 'value.name argument'; value provided in
en: and ‘value.name argument’; value provided in

en: argument 'all' should be logical of length one
en: argument ‘all’ should be logical of length one

en: argument 'fill' ignored, only make sense for type='const'
en: argument ‘fill’ ignored, only make sense for type=‘const’

en: but 'new' is length
en: but ‘new’ is length

en: by=c(...), key(...) or names(...) must evaluate to 'character'
en: by=c(...), key(...) or names(...) must evaluate to ‘character’

en: colClasses is type 'logical' which is ok if all NA but it has some TRUE or FALSE values in it which is not allowed. Please consider the drop= or select= argument instead. See ?fread.
en: colClasses is type ‘logical’ which is ok if all NA but it has some TRUE or FALSE values in it which is not allowed. Please consider the drop= or select= argument instead. See ?fread.

en: data.table inherits from data.frame (from v1.5), but this data.table does not. Has it been created manually (e.g. by using 'structure' rather than 'data.table') or saved to disk using a prior version of data.table?
en: data.table inherits from data.frame (from v1.5), but this data.table does not. Has it been created manually (e.g. by using ‘structure’ rather than ‘data.table’) or saved to disk using a prior version of data.table?

en: dateTimeAs must be 'ISO','squash','epoch' or 'write.csv'
en: dateTimeAs must be ‘ISO’,‘squash’,‘epoch’ or ‘write.csv’

en: idcol must be a logical or character vector of length 1. If logical TRUE the id column will named '.id'.
en: idcol must be a logical or character vector of length 1. If logical TRUE the id column will named ‘.id’.

en: in data.table 'x'.
en: in data.table ‘x’.

en: in data.table 'y'.
en: in data.table ‘y’.

en: input= must be a single character string containing a file name, a system command containing at least one space, a URL starting 'http[s]://', 'ftp[s]://' or 'file://', or, the input data itself containing at least one \n or \r
en: input= must be a single character string containing a file name, a system command containing at least one space, a URL starting ‘http[s]://’, ‘ftp[s]://’ or ‘file://’, or, the input data itself containing at least one \n or \r

en: logical error. i is not a data.table, but 'on' argument is provided.
en: logical error. i is not a data.table, but ‘on’ argument is provided.

en: logical error. i is not data.table, but mult='all' and 'by'=.EACHI
en: logical error. i is not data.table, but mult=‘all’ and ‘by’=.EACHI

en: mult argument can only be 'first', 'last' or 'all'
en: mult argument can only be ‘first’, ‘last’ or ‘all’

en: not-join '!' prefix is present on i but nomatch is provided. Please remove nomatch.
en: not-join ‘!’ prefix is present on i but nomatch is provided. Please remove nomatch.

en: of 'by' or 'keyby' is type
en: of ‘by’ or ‘keyby’ is type

en: of 'old' is '
en: of ‘old’ is '

en: passing 'f' argument together with 'by' is not allowed, use 'by' when split by column in data.table and 'f' when split by external factor
en: passing ‘f’ argument together with ‘by’ is not allowed, use ‘by’ when split by column in data.table and ‘f’ when split by external factor

en: reading will proceed to search for 'skip' from the beginning of the file, NOT from the end of
en: reading will proceed to search for ‘skip’ from the beginning of the file, NOT from the end of

en: roll must be a single TRUE, FALSE, positive/negative integer/double including +Inf and -Inf or 'nearest'
en: roll must be a single TRUE, FALSE, positive/negative integer/double including +Inf and -Inf or ‘nearest’

en: script must end with '.Rraw'. If a file ending '.Rraw.bz2' exists, that will be found and used.
en: script must end with ‘.Rraw’. If a file ending ‘.Rraw.bz2’ exists, that will be found and used.

en: trying to use integer64 class when 'bit64' package is not installed
en: trying to use integer64 class when ‘bit64’ package is not installed

en: use.names='check' cannot be used explicitly because the value 'check' is new in v1.12.2 and subject to change. It is just meant to convey default behavior. See ?rbindlist.
en: use.names=‘check’ cannot be used explicitly because the value ‘check’ is new in v1.12.2 and subject to change. It is just meant to convey default behavior. See ?rbindlist.

en: with=FALSE ignored, it isn't needed when using :=. See ?':=' for examples.
en: with=FALSE ignored, it isn't needed when using :=. See ?‘:=’ for examples.

en: with=FALSE together with := was deprecated in v1.9.4 released Oct 2014. Please wrap the LHS of := with parentheses; e.g., DT[,(myVar):=sum(b),by=a] to assign to column name(s) held in variable myVar. See ?':=' for other examples. As warned in 2014, this is now a warning.
en: with=FALSE together with := was deprecated in v1.9.4 released Oct 2014. Please wrap the LHS of := with parentheses; e.g., DT[,(myVar):=sum(b),by=a] to assign to column name(s) held in variable myVar. See ?‘:=’ for other examples. As warned in 2014, this is now a warning.

en: x contains a column called '.xi'. Conflicts with internal use by data.table.
en: x contains a column called ‘.xi’. Conflicts with internal use by data.table.

en: x is a list, 'cols' can not be 0-length
en: x is a list, ‘cols’ can not be 0-length

en: x is a list, 'cols' cannot be 0-length.
en: x is a list, ‘cols’ cannot be 0-length.

en: x is a single vector, non-NULL 'by' doesn't make sense
en: x is a single vector, non-NULL ‘by’ doesn't make sense

en: x is a single vector, non-NULL 'cols' doesn't make sense
en: x is a single vector, non-NULL ‘cols’ doesn't make sense

en: x is a single vector, non-NULL 'cols' doesn't make sense.
en: x is a single vector, non-NULL ‘cols’ doesn't make sense.

en: x is vector but 'by' is supplied
en: x is vector but ‘by’ is supplied
