confbar draws multi-level confidence bars using small rectangles
that may be of different colors.
james.stein computes James-Stein shrunken estimates of cell
means given a response variable (which may be binary) and a grouping
indicator.
km.quick provides a fast way to invoke
survfit.km in the
survival
package to get Kaplan-Meier estimates for a
single stratum for a vector of time points (if
times is given) or to
get a vector of survival time quantiles (if
q is given).
lm.fit.qr.bare is a fast stripped-down function for computing
regression coefficients, residuals, R^2, and fitted values. It
uses the Fortran routines
dqrls.
matxv multiplies a matrix by a vector, handling automatic
addition of intercepts if the matrix does not have a column of ones.
If the first argument is not a matrix, it will be converted to one.
nomiss returns a data frame (if its argument is one) with rows
corresponding to
NAs removed, or it returns a matrix with rows
with any element missing removed.
outerText uses
text() to put test strings in left or
right margins. It temporarily sets
par(xpd=NA) if using R.
sepUnitsTrans converts character vectors containing values such
as
c("3 days","3day","4month","2 years","2weeks","7") to
numeric vectors
(here
c(3,3,122,730,14,7)) in a flexible fashion. The user can
specify a
vector of units of measurements and conversion factors. The units
with a conversion factor of
1 are taken as the target units,
and if those units are present in the character strings they are
ignored. The target units are added to the resulting vector as the
"units"
attribute.
trap.rule computes the area under a curve using the trapezoidal
rule, assuming
x is sorted.
trellis.strip.blank sets up Trellis or Lattice graphs to have a
clear background on the strips for panel labels.
under.unix is a scalar logical value that is
TRUE if you
are running Linux or Unix.
.R. is a logical value set to
TRUE if running R,
FALSE
for S-Plus.
.SV4. is a logical value set to
TRUE if running version
4 of the S language under S-Plus,
FALSE otherwise.
unPaste provides a version of the S-Plus
unpaste that
works for R and S-Plus.
whichClosePW is a very fast function using weighted multinomial
sampling to determine which element of a vector is "closest" to each
element of another vector.
whichClosest quickly finds the closest
element without any randomness.
xless is a function for Linux/Unix users to invoke the system
xless
command to pop up a window to display the result of
print
ing an object.
confbar(at, est, se, width, q = c(0.7, 0.8, 0.9, 0.95, 0.99),
col = if (.R.) gray(c(0, 0.25, 0.5, 0.75, 1)) else
if (under.unix) c(1, 0.8, 0.5, 0.2, 0.065) else
c(1, 4, 3, 2, 5),
type = c("v", "h"), labels = TRUE, ticks = FALSE,
cex = 0.5, side = "l", lwd = 5, clip = c(-1e+30, 1e+30),
fun = function(x) x,
qfun = function(x) ifelse(x == 0.5, qnorm(x),
ifelse(x < 0.5, qnorm(x/2),
qnorm((1 + x)/2))))
james.stein(y, group)
km.quick(S, times, q)
lm.fit.qr.bare(x, y, tolerance, intercept=TRUE, xpxi=FALSE)
matxv(a, b, kint=1)
nomiss(x)
outerText(string, y, setAside=string[1], side=4, space=1,
adj=1, cex=par('cex'))
sepUnitsTrans(x, conversion=c(day=1, month=365.25/12, year=365.25, week=7),
round=FALSE, digits=0)
trap.rule(x, y)
trellis.strip.blank()
unPaste(str, sep="/", extended=FALSE)
whichClosest(x, w)
whichClosePW(x, w, f=0.2)
xless(x, ..., title)
"v" for vertical,
"h" for horizontal
FALSE to omit drawing confidence
coefficients
TRUE to draw lines between rectangles
confbar is
"b","l","t","r" for bottom,
left, top, right. For
outText is the using integers 1-4
corresponding to these.
FALSE to not automatically add a column
of ones to the
x matrix
TRUE to add an element to the result
containing the inverse of X'X
b to add to the result if
a
does not contain a column for intercepts
adj=1 side=4, is a character string used to
determine the space to set aside for all strings.
adj=0) or to the right (
adj=1)
TRUE to round converted values
round
lm.fit.qr.bare) or data
frame. For
xless may be any object that is sensible to
print. For
sepUnitsTrans is a character or factor
variable.
Frank Harrell
trap.rule(1:100,1:100)
unPaste(c('a;b or c','ab;d','qr;s'), ';')
sepUnitsTrans(c('3 days','4 months','2 years','7'))
set.seed(1)
whichClosest(1:100, 3:5)
whichClosest(1:100, rep(3,20))
whichClosePW(1:100, rep(3,20))
whichClosePW(1:100, rep(3,20), f=.05)
whichClosePW(1:100, rep(3,20), f=1e-10)