.calcCV                 PLR: calculate CV for one concentration level
.calcContPrelimRanges   PLR: Calculate key features for the existing
                        continuous preliminary ranges
.calcLinearModel        FLR: calculate weighted or unweighted linear
                        model
.calcPerBias            FLR: calculate percent bias for a specific
                        concentration level
.calcPerBiasAvgSDCV     FLR: calculate average, SD and CV percent bias
                        for each concentration level
.calcPerBiasLevels      FLR: calculate list of percent bias values for
                        all concentration levels
.calcResponseFactors    Calculate Response factors
.calcWeights            FLR: calculate weights for linear model for a
                        specific concentration level
.checkFinalRange        FLR: checks if final linear range has been
                        reached (compare average percent bias with
                        threshold)
.checkNumberReplicates
                        Data preprocessing: Helper function to check
                        for sufficient number of replicates for a
                        specific concentration level
.filterConcentrationLevel
                        Data preprocessing: Helper function to select
                        all rows from a specific concentration level
.prepareAnnotationData
                        Prepare annotation data
.prepareCalibData       Prepare calibration data
.prepareCurveData       Prepare curve data
.saveCCResult           Save results of CalibraCurve
.saveTablesAndPlots     Save result tables and plots
.selctConcLevel         FLR: selects the highest or lowest
                        concentration level for removal
CalibraCurve            CalibraCurve
assemble_results        Assemble result tables
calcRF                  Calculate Response factors
calc_single_curve       Calculate all necessary steps for a single
                        calibration curve
calculate_FLR           Calculate the final linear range
calculate_PLR           Calculate preliminary linear range (PLR)
cleanData               Clean data (remove 0s and NAs, remove
                        concentration levels with insufficient number
                        of replicates)
plotCalibraCurve        Plot the calibration curve
plotResponseFactors     Plot response factors
predictConcentration    Predict concentrations from intensity values
                        based on a given calibration curve
readDataSE              Read data stored as an SummarizedExperiment
                        object (directly or stored in an .rds file).
                        Extracts the two relevant columns
                        (concentration and measurement) and orders the
                        data by increasing concentration level.
readDataTable           Read data in different table input formats
                        (xlsx, csv or txt). Extracts the two relevant
                        columns (concentration and measurement) and
                        orders the data by increasing concentration.
readMultipleTables      Read folder of files in different table input
                        formats (xlsx, csv or txt).
