Extract calculated fields from a TWB — extract_calculated_fields • twbparser

Finds columns that contain <calculation> nodes and returns metadata and formulas, with a heuristic flag for table calculations.

Usage

extract_calculated_fields(xml_doc)

Arguments

xml_doc: An xml2 document for a Tableau .twb.

Value

A tibble with columns:

datasource: Datasource name.
name: User-visible caption or cleaned internal name.
tableau_internal_name: Internal Tableau name (often bracketed).
datatype: Tableau datatype.
role: Tableau role.
formula: Calculation formula string.
calc_class: Tableau calc class (often "tableau").
is_table_calc: Heuristic flag for table calcs (e.g., WINDOW_, LOOKUP).
table: Raw table reference.
table_clean: Cleaned table name.

Examples

if (FALSE) { # \dontrun{
xml <- xml2::read_xml("inst/extdata/sample.twb")
calc <- extract_calculated_fields(xml)
} # }