OceanTracer-package: A comprehensive package for marine source unmixing

In OceanTracer: Marine Source Unmixing Toolkit

A comprehensive package for marine source unmixing

Description

Advanced apportionment toolkit designed specifically for marine biogeochemistry, coastal tracing, and oceanographic sediment transport. It reconstructs the provenance of particulate matter and marine sediments by unmixing isotopic and elemental signatures. The package introduces marine-optimized linear variability propagation alongside automated baseline corrections for compound-specific isotopes.

Value

No return value, package overview.

Tool development

• OceanTracers born from a combine expertise between unmixing experts and marine scientist including the state-of-the-art techniques implemented in sediment tracing and the up to date techniques used in marine tracing.

Author(s)

Authors:

• Esther Cepeda (Maintainer) [e-mail]

• Maarten Wynants

• Ivan Lizaga [e-mail]

Contributors:

• Samuel Bodé, Pascal Boeckx, Jan Vanaverbeke, Ulrike Braeckman, Aiming Liang, Borja Latorre, Leticia Gaspar, Ana Navas, Vince Q Vu

Examples

# 1. Load built-in example dataset
data_path <- system.file(
   "extdata", 
   "ArtificialMixtureAminoAcidData.csv",
   package = "OceanTracer"
)
data_AM <- read.csv(data_path)

# 2. Color palette setup
my_cols <- c(
   S1 = "#56B4E9", 
   S2 = "#509E73", 
   S3 = "#E6925F", 
   Mx = "purple"
)

# 3. Generate initial diagnostic plots
Graph_boxplots(data_AM, tracers = 1:12, ncol = 3, colors = my_cols)
Correlation_Chart(data_AM, tracers = 1:12, mixtures = TRUE, colors = my_cols)

OceanTracer documentation built on Oct. 15, 2026, 5:09 p.m.