[Rd] contour documentation (PR#740)

[J.C.Rougier@durham.ac.uk]

A minor point, but the specification of the contour function is
lagging behind the ?contour file:

> args(contour)

function (x = seq(0, 1, len = nrow(z)), y = seq(0, 1, len = ncol(z)), 
    z, nlevels = 10, levels = pretty(zlim, nlevels), labels = NULL, 
    xlim = range(x, finite = TRUE), ylim = range(y, finite = TRUE), 
    zlim = range(z, finite = TRUE), labcex = 0.4, drawlabels = TRUE, 
    method = "flattest", vfont = NULL, col = par("fg"), lty = par("lty"), 
    lwd = par("lwd"), add = FALSE, ...) 

> ?contour

     contour(x = seq(0, 1, len = nrow(z)), y = seq(0, 1, len = ncol(z)),
             z,
             nlevels = 10, levels = pretty(zlim, nlevels), labels = NULL,
             xlim = range(x, finite = TRUE),
             ylim = range(y, finite = TRUE),
             zlim = range(z, finite = TRUE),
             labcex = 0.6, drawlabels = TRUE, method = "flattest", 
             vfont = c("sans serif", "plain"),
             col = par("fg"), lty = par("lty"), lwd = par("lwd"),
             add = FALSE, ...)

In particular the function default arguments should apparently be
"labcex = 0.6" and "vfont = c("sans serif", "plain")", assuming
of course that the help file is more up-to-date than the function
definition.

Cheers, Jonathan.

--please do not edit the information below--

Version:
 platform = sparc-sun-solaris2.7
 arch = sparc
 os = solaris2.7
 system = sparc, solaris2.7
 status = 
 major = 1
 minor = 1.1
 year = 2000
 month = August
 day = 15
 language = R

Search Path:
 .GlobalEnv, Autoloads, package:base

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