extendLength {MassSpecWavelet} | R Documentation

## Extend the length of a signal or matrix

### Description

Extend the length of a signal or matrix by row

### Usage

    extendLength(x, addLength = NULL, method = c("reflection", "open", "circular"), direction = c("right", "left", "both"))

### Arguments

`x` | a vector or matrix with column with each column as a signal
`addLength` | the length to be extended
`method` | three methods available, c("reflection", "open", "circular"). By default, it is "reflection".
`direction` | three options available: c("right", "left", "both")

### Value

return the extended vector or matrix.

### Author(s)

Pan Du

### See Also

`extendNBase`

### Examples

    	# a = matrix(rnorm(9), 3)
    	# extendLength(a, 3, direction='right') 	## not exposed function

[Package MassSpecWavelet version 1.60.1 Index]