SMLG (Statistical Machine Learning Group) Discussion Forum

I am uploading the R code to calculate biological age and perform linear regression to assess the association between biological age and heavy metal exposure. In the dataset, phenoage0 depicts biological age and phenoage_advance0 is the difference between chronological and biological age. I have also attached a Word document containing the analysis results. The first step in the code is to download a file. In case the part written to download the file fails, here is the link, https://github.com/dayoonkwon/BioAge/bl ... HANES4.rda