function for use in graphs that are used with the psfrag package in LaTeX

tex is a little function to save typing when including TeX commands in graphs that are used with the psfrag package in LaTeX to typeset any LaTeX text inside a postscript graphic. tex surrounds the input character string with \tex[options]{}. This is especially useful for getting Greek letters and math symbols in postscript graphs. By default tex returns a string with psfrag commands specifying that the string be centered, not rotated, and not specially enlarged or shrunk.

Usage

tex(string, lref='c', psref='c', scale=1, srt=0)

Arguments

string: a character string to be processed by psfrag in LaTeX.
lref: LaTeX reference point for string. See the psfrag documentation referenced below. Default is "c" for centered (this is also the default for psref).
psref: PostScript reference point.
scale: scall factor, default is 1
srt: rotation for string in degrees (default is zero)

Value

tex returns a modified character string.

Author

Frank Harrell
Department of Biostatistics
Vanderbilt University
fh@fharrell.com

References

Grant MC, Carlisle (1998): The PSfrag System, Version 3. Full documentation is obtained by searching www.ctan.org for pfgguide.ps.