pl2curves {DPQ} | R Documentation |
Plot two noncentral (chi-squared or t or ..) distribution curves for visual comparison.
pl2curves(fun1, fun2, df, ncp, log = FALSE, from = 0, to = 2 * ncp, p.log = "", n = 2001, leg = TRUE, col2 = 2, lwd2 = 2, lty2 = 3, ...)
fun1, fun2 |
|
df, ncp, log |
parameters to be passed and used in both functions, which hence typically are non-central chi-squared or t density, probability or quantile functions. |
from, to |
numbers determining the x-range, passed to
|
p.log |
string, passed as |
n |
the number of evaluation points, passed to |
leg |
logical specifying if a |
col2, lwd2, lty2 |
color, line width and line type for the second curve. (The first curve uses defaults for these graphical properties.) |
... |
further arguments passed to first |
TODO: inivisible return both curve() results, i.e., (x,y1, y2), possibly as data frame
Martin Maechler
curve
, ..
p.dnchiBessel <- function(df, ncp, log=FALSE, from=0, to = 2*ncp, p.log="", ...) { pl2curves(dnchisqBessel, dchisq, df=df, ncp=ncp, log=log, from=from, to=to, p.log=p.log, ...) } ## TODO the p.dnchiB() examples >>>>>> ../tests/chisq-nonc-ex.R <<<