R: Date/Time/Directory Stamp the Current Plot

Stamp {DescTools} | R Documentation

## Date/Time/Directory Stamp the Current Plot

### Description

Stamp the current plot in the extreme lower right corner. A free text or expression can be defined as text to the stamp.

### Usage

    Stamp(txt = NULL, las = par("las"), cex = 0.6)

### Arguments

`txt` | an optional single text string. If it is not given, the function will look for a defined option named `stamp`. If not found the current date will be taken as text. If the stamp option is defined as expression the function will evaluate it. This can be used to define dynamic texts.
`las` | numeric in 1,3, defining direction of the text. 1 means horizontal, 3 vertical. Default is taken from `par("las")`.
`cex` | numeric character expansion factor; multiplied by `par("cex")` yields the final character size. Defaults to 0.6.

### Details

The text can be freely defined as option. If user and date should be included by default, the following option using an expression will help:

    DescToolsOptions(stamp=expression(gettextf('%s/%s',
              Sys.getenv('USERNAME'), Format(Today(), fmt='yyyy-mm-dd') )))

For R results may not be satisfactory if `par(mfrow=)` is in effect.

### Author(s)

Frank E Harrell Jr <f.harrell@vanderbilt.edu>
with some amendments by Andri Signorell <andri@signorell.net>

### See Also

`text`

### Examples

    plot(1:20)
    Stamp()

[Package DescTools version 0.99.38 Index]