R: Estimation of baseline value

baselineabif {seqinr} | R Documentation

## Estimation of baseline value

### Description

This function tries to estimate the baseline value for RFU data from capillary electrophoresis whith the heuristic that the most common value is the baseline.

### Usage

    baselineabif(rfu, maxrfu = 1000)

### Arguments

`rfu` | a numeric vector of signal value
`maxrfu` | signal values greater or equal to maxrfu are forced to NA

### Value

A single numeric value for the estimated baseline.

### Author(s)

J.R. Lobry

### See Also

`JLO` for a dataset example, `plotabif` to plot this kind of data, `peakabif` to estimate peak parameters.

### Examples

    data(JLO)
    rfu <- JLO$Data$DATA.1
    bl <- baselineabif(rfu)
    plot(1:length(rfu), rfu, type = "l",
      xlab = "Time [datapoint units]",
      ylab = "Signal [RFU]",
      main = "Example of baseline estimates")
    abline(h = bl, col="red", lty = 2)
    legend("topright", inset = 0.02, "Baseline estimate", lty = 2, col = "red")

[Package seqinr version 3.4-5 Index]