Log a summary of a data table

Prints the number of rows and columns of a data table, along with its key, and returns the object unchanged, so that it can be used within a chain of operations.

Usage

dtlog_summary(.data)

Arguments

.data

A data.table (or any data frame).

Value

.data, unchanged and returned visibly.

See also

dt_log() to write a transcript of a whole session to a file.

Examples

dt <- data.table::data.table(a = 1:3, b = 4:6)
dtlog_summary(dt)
#> dtlog: data.table with 3 rows and 2 columns
#>        a     b
#>    <int> <int>
#> 1:     1     4
#> 2:     2     5
#> 3:     3     6