R: Jitter marker positions in a genetic map

jittermap {qtl} | R Documentation

## Jitter marker positions in a genetic map

### Description

Jitter the marker positions in a genetic map so that no two markers are on top of each other.

### Usage

    jittermap(object, amount=1e-6)

### Arguments

`object` | Either a cross (an object of class `cross`; see `read.cross` for details) or a map (an object of class `map`; see `pull.map` for details).
`amount` | The amount by which markers should be moved.

### Value

Either the input cross object or the input map, but with marker positions slightly jittered. If the input was a cross, the function `clean` is run to strip off any intermediate calculations.

### Author(s)

Karl W Broman, broman@wisc.edu

### See Also

`pull.map`, `replace.map`, `summary.cross`

### Examples

    data(hyper)
    hyper <- jittermap(hyper)

[Package qtl version 1.46-2 Index]