genes {made4} | R Documentation

## Returns an index of the top N variables at the ends of the x and y axes

### Description

Returns an index of the top n maximum and minimum values in 2 columns of a matrix or data.frame.

### Usage

    genes(dudivar,n=5, axis1=1, axis2=2)

### Arguments

`dudivar` | a `data frame` or `matrix` with at least two columns, containing the x,y coordinates.
`axis1` | the column number for the x-axis.
`axis2` | the column number for the y-axis.
`n` | n is the number of genes to be extracted.

### Details

Genes returns an index of the "top" variables at the ends of the x and y axes. Genes is not normally called by the user but is called by plotgenes()

If you wish to return a table or list of the top genes at the end of an axis, use the function `topgenes`.

### Author(s)

Aedin Culhane

### See Also

See Also as `plotgenes`

[Package made4 version 1.68.0 Index]