| exp_input | A data frame of expected ERCC1 and ERCC2 ratios |
| getLowLcpmCutoff | Function to empirically determine a log2 CPM cutoff based on ERCC RNA spike-in |
| mta_dta | A data frame containing sample-level ERCC meta data |
| obs_input | A data frame of observed spike in ERCC normalized LCPM data |
| plot.empLCPM | Plot the empirically derived LCPM cutoff |
| print.empLCPM | Print the empirically derived LCPM cutoff results |
| summary.empLCPM | Summarizing the empirically derived LCPM cutoff |