R: Write Character Data in NEXUS Format

write.nexus.data {ape} | R Documentation

## Write Character Data in NEXUS Format

### Description

This function writes in a file a list of data in the NEXUS format. The names of the vectors of the list are used as taxon names.

### Usage

    write.nexus.data(x, file, format = "dna", datablock = TRUE,
                     interleaved = TRUE, charsperline = NULL,
                     gap = NULL, missing = NULL)

### Arguments

`x` | a matrix or a list of data each made of a single vector of mode character where each element is a character state (e.g., “A”, “C”, ...) Objects of class of “DNAbin” are accepted.
`file` | a file name specified by either a variable of mode character, or a double-quoted string.
`format` | a character string specifying the format of the sequences. Four choices are possible: `"dna"` (the default) `"protein"`, `"standard"` or `"continuous"` or any unambiguous abbreviation of these (case insensitive).
`datablock` | a logical, if `TRUE` the data are written in a single DATA block. If `FALSE`, the data are written in TAXA and CHARACTER blocks. Default is `TRUE`.
`interleaved` | a logical, if `TRUE` the data is written in interleaved format with number of characters per line as specified with `charsperline = numerical_value`. If `FALSE`, the data are written in sequential format. Default is `TRUE`.
`charsperline` | a numeric value specifying the number of characters per line when used with `interleaved = TRUE`. Default is 80.
`gap` | a character specifying the symbol for gap. Default is “`-`”.
`missing` | a character specifying the symbol for missing data. Default is “`?`”.

### Details

If the sequences have no names, then they are given “1”, “2”, ..., as names in the file.

Sequences must be all of the same length.

### Value

None (invisible ‘NULL’).

### Author(s)

Johan Nylander nylander@scs.fsu.edu and Thomas Guillerme

### References

Maddison, D. R., Swofford, D. L. and Maddison, W. P. (1997) NEXUS: an extensible file format for systematic information. Systematic Biology, 46, 590–621.

### See Also

`read.nexus`,`write.nexus`, `read.nexus.data`

### Examples

    ## Not run:
    ## Write interleaved DNA data with 100 characters per line in a DATA block
    data(woodmouse)
    write.nexus.data(woodmouse, file= "wood.ex.nex", interleaved = TRUE, charsperline = 100)
    ## Write sequential DNA data in TAXA and CHARACTERS blocks
    data(cynipids)
    write.nexus.data(cynipids, file = "cyn.ex.nex", format = "protein",
                     datablock = FALSE, interleaved = FALSE)
    unlink(c("wood.ex.nex", "cyn.ex.nex"))

    ## End(Not run)

[Package ape version 5.4 Index]