add_jervis_bardy.RdFunction to estimate spearman correlation between relative abundance and sample dna concentration, for each taxon.
add_jervis_bardy(ta, dna_conc, sample_condition = T, min_pres = 3)A tidyamplicons object.
A variable in the samples table that contains dna concetrations (unquoted).
An optional extra condition that samples must pass before calculations.
The minimum number of samples a taxon has to be present in for its correlation to be calculated.
See: J. Jervis-Bardy et al., “Deriving accurate microbiota profiles from human samples with low bacterial content through post-sequencing processing of Illumina MiSeq data,” Microbiome, vol. 3, no. 1, Art. no. 1, 2015, doi: 10.1186/s40168-015-0083-8.