fillUp {MSnbase} | R Documentation

## Fills up a vector

### Description

This function replaces all the empty characters `""` and/or `NA`s with the value of the closest preceding the preceding non-`NA`/`""` element. The function is used to populate dataframe or matrice columns where only the cells of the first row in a set of partially identical rows are explicitly populated and the following are empty.

### Usage

    fillUp(x)

### Arguments

`x` | a vector.

### Value

A vector as `x` with all empty characters `""` and `NA` values replaced by the preceding non-`NA`/`""` value.

### Author(s)

Laurent Gatto <lg390@cam.ac.uk>

### Examples

    d <- data.frame(protein=c("Prot1","","","Prot2","",""),
                    peptide=c("pep11","","pep12","pep21","pep22",""),
                    score=c(1:2,NA,1:3))
    d
    e <- apply(d,2,fillUp)
    e
    data.frame(e)
    fillUp(d[,1])

[Package MSnbase version 2.10.1 Index]