A downsampled version of the ISGlobal Exposome Data Challenge 2021 dataset (Maitre et al., Environment International, 2022; DOI: 10.1016/j.envint.2022.107422). This example dataset is included with tidyexposomics for vignette evaluation. This subset represents samples from children with low socioeconomic status in the first cohort of the original dataset.
Usage
data("tidyexposomics_example")Details
The data have been filtered and transformed to illustrate
the tidyexposomics workflow. Only a small subset of variables, and
the top 500 most variable features per omic layer are retained.
Contents
- meta
A data frame of selected exposure, demographic, and outcome variables for a subset of participants.
- annotated_cb
A data frame providing ontology-linked annotation for the exposures in
meta.- exp_filt
A numeric matrix of gene expression values (500 features, 48 samples) representing the top-variance transcripts.
- exp_fdata
Feature-level metadata for
exp_filt, including cleaned gene symbols.- methyl_filt
A numeric matrix of DNA methylation M-values (500 CpG sites, 48 samples).
- methyl_fdata
Feature-level metadata for
methyl_filt.
Source
Derived from the ISGlobal Exposome Data Challenge 2021
(Maitre et al., Environment International, 2022;
DOI: 10.1016/j.envint.2022.107422),licensed under CC-BY 4.0.
The original data are available on Figshare (Project 98813)
and GitHub (isglobal-exposomeHub/ExposomeDataChallenge2021).
This example dataset was processed and downsampled by the
tidyexposomics authors and is not a replacement for the full dataset.
Examples
data("tidyexposomics_example")