A function to create a data dictionary for a data frame, a tibble, or a data library. The function will generate a tibble of information about the data. The tibble will contain the following columns:
Name: The name of the data object.
Column: The name of the column.
Class: The class of the column.
Label: The value of the label attribute.
Description: A description applied to this column.
Format: The value of the format attribute.
Width: The max character width of the data in this column.
Justify: The justification or alignment attribute value.
Rows: The number of data rows.
NAs: The number of NA values in this column.
dictionary(x)
| x | The input library, data frame, or tibble. |
|---|
libname to create a data library. Also
see the fmtr package for functions to set the
formats, descriptions,
widths, and justification
attributes on a data frame.
# Create temp directory tmp <- tempdir() # Create library libname(dat, tmp) # Add data to the library lib_add(dat, beaver1) lib_add(dat, iris) # Examine the dictionary for the library dictionary(dat) # A tibble: 9 x 10 # Name Column Class Label Description Format Width Justify Rows NAs # <chr> <chr> <chr> <lgl> <lgl> <lgl> <lgl> <lgl> <int> <int> # 1 beaver1 day numeric NA NA NA NA NA 114 0 # 2 beaver1 time numeric NA NA NA NA NA 114 0 # 3 beaver1 temp numeric NA NA NA NA NA 114 0 # 4 beaver1 activ numeric NA NA NA NA NA 114 0 # 5 iris Sepal.Length numeric NA NA NA NA NA 150 0 # 6 iris Sepal.Width numeric NA NA NA NA NA 150 0 # 7 iris Petal.Length numeric NA NA NA NA NA 150 0 # 8 iris Petal.Width numeric NA NA NA NA NA 150 0 # 9 iris Species factor NA NA NA NA NA 150 0 # Clean up lib_delete(dat)