dot-prepare_peaklist_columns: Ensure required peaklist columns are present

In ume: Ultrahigh-Resolution Mass Spectrometry Data Evaluation for Complex Organic Matter

Ensure required peaklist columns are present

Description

Internal helper for as_peaklist() that ensures essential structural columns required for UME processing are present. Specifically:

• If file_id is missing but a character column such as file or link_rawdata exists, file_id is generated as a unique integer per distinct value in that column.

• If no such identifier exists, file_id := 1L is assigned.

• Adds peak_id if missing (using .I)

• Converts file_id to integer type

Usage

.prepare_peaklist_columns(pl)

Arguments

pl	A data.table representing a peaklist.

Value

A data.table with guaranteed core columns.

ume documentation built on Dec. 13, 2025, 1:06 a.m.