select_tracers: Select specific tracers from a data frame

In fingerPro: A Comprehensive Package for Sediment Source Unmixing

Select specific tracers from a data frame

Description

This function allows you to select a subset of tracer columns from a data frame. It is designed to work with both isotopic and non-isotopic datasets, and also with both averaged and raw data formats.

Usage

select_tracers(data, tracers)

Arguments

data	A data frame containing tracer data.
tracers	A character vector of tracers to select.

Value

A data frame containing only the specified tracer columns. The returned columns will be selected based on the data format. For non-isotopic and raw data, it selects the tracer columns (e.g., "tracer1"). For non-isotopic and averaged data, it selects the mean and standard deviation columns (e.g., "mean_tracer1", "sd_tracer1"). For isotopic and raw data, it selects the tracer and its corresponding concentration column (e.g., "tracer1", "cont_tracer1"). For isotopic and averaged data, it selects the mean and standard deviation for both the tracer and its concentration (e.g., "mean_tracer1", "mean_cont_tracer1", "sd_tracer1", "sd_cont_tracer1").

fingerPro documentation built on Aug. 27, 2025, 5:11 p.m.