Getting heplot function arguments from the heplots R package
Getting the arguments to a function is R
pretty straightforward and can be retrieved using args(functionname)
. But I couldn't figure out how to get the function arguments heplot
from the package heplots
. Any help would be much appreciated. Thanks to
library(heplots)
?heplot
args(heplot)
function (mod, ...)
NULL
Want to get the next part
## S3 method for class 'mlm'
heplot(mod, terms, hypotheses, term.labels = TRUE,
hyp.labels = TRUE, err.label="Error", label.pos=NULL,
variables = 1:2, error.ellipse = !add,
factor.means = !add, grand.mean = !add, remove.intercept = TRUE,
type = c("II", "III", "2", "3"), idata=NULL, idesign=NULL,
icontrasts=c("contr.sum", "contr.poly"),
imatrix=NULL, iterm=NULL, markH0=!is.null(iterm),
manova, size = c("evidence", "effect.size"),
level = 0.68, alpha = 0.05, segments = 40,
center.pch = "+", center.cex=2,
col = getOption("heplot.colors",
c("red", "blue", "black", "darkgreen",
"darkcyan","magenta", "brown","darkgray")),
lty = 2:1, lwd = 1:2,
fill=FALSE, fill.alpha=0.3,
xlab, ylab, main = "", xlim, ylim, axes=TRUE, offset.axes,
add = FALSE, verbose = FALSE, warn.rank = FALSE, ...)
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heplot
is a common function of S3. It uses a method heplot.mlm
that is a non-exportable function. You can access this information by first looking at the function body heplot
. If you see UseMethod
in the body of a function, the function uses the method. All available methods for common S3 functions can be accessed withmethods
> methods(heplot)
To access the non-exported function, you can use :::
. Wrap that call with a args
and you have the argument list you are looking for.
> args(heplots:::heplot.mlm)
# function (mod, terms, hypotheses, term.labels = TRUE, hyp.labels = TRUE,
# err.label = "Error", label.pos = NULL, variables = 1:2, error.ellipse = !add,
# factor.means = !add, grand.mean = !add, remove.intercept = TRUE,
# type = c("II", "III", "2", "3"), idata = NULL, idesign = NULL,
# icontrasts = c("contr.sum", "contr.poly"), imatrix = NULL,
# iterm = NULL, markH0 = !is.null(iterm), manova, size = c("evidence",
# "effect.size"), level = 0.68, alpha = 0.05, segments = 40,
# center.pch = "+", center.cex = 2, col = getOption("heplot.colors",
# c("red", "blue", "black", "darkgreen", "darkcyan", "magenta",
# "brown", "darkgray")), lty = 2:1, lwd = 1:2, fill = FALSE,
# fill.alpha = 0.3, xlab, ylab, main = "", xlim, ylim, axes = TRUE,
# offset.axes, add = FALSE, verbose = FALSE, warn.rank = FALSE,
# ...)
# NULL
Note. This function obviously has many arguments, so
> formals(args(heplots:::heplot.mlm)) ## or as.list()
might be a more convenient and understandable way to iterate over the list of arguments.
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