Test for an OTU's (inverse) correlation between its abundance and amplicon concentration.

Usage

contam_test(.df, ..., otu = "otu", freq = "freq", conc = "PostPCRConc")

Arguments

.df
the data frame
...
the grouping variables (unquoted), i.e. ExtractionType and SampleType
otu
the column with unique otu names
freq
the column denoting OTU proportional abundance (as string)
conc
the column containing amplicon concentration data

Value

the data frame with correlation results added in for each OTU

Description

Test for an OTU's (inverse) correlation between its abundance and amplicon concentration.