Displaying 2 results from an estimated 2 matches for "qrstr".
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rstr
2011 Nov 21
0
Suggested improvement for src/library/base/man/qraux.Rd
...} = \bold{QR}.
The number of rows of \bold{R} is
either \code{nrow(X)} or \code{ncol(X)} (and may depend on whether
\code{complete} is \code{TRUE} or \code{FALSE}.
}
\seealso{
\code{\link{qr}},
\code{\link{qr.qy}}.
}
\examples{
p <- ncol(x <- LifeCycleSavings[,-1]) # not the 'sr'
qrstr <- qr(x) # dim(x) == c(n,p)
qrstr $ rank # = 4 = p
Q <- qr.Q(qrstr) # dim(Q) == dim(x)
R <- qr.R(qrstr) # dim(R) == ncol(x)
X <- qr.X(qrstr) # X == x
range(X - as.matrix(x))# ~ < 6e-12
## X == Q \%*\% R if there has been no pivoting, as here.
Q \%*\% R
# example of pivoting
x <...
2003 Apr 24
2
R-1.7.0 build feedback: NetBSD 1.6 (PR#2837)
R-1.7.0 built on NetBSD 1.6, but the validation test suite failed:
Machinetype: Intel Pentium III (600 MHz); NetBSD 1.6 (GENERIC)
Remote gcc version: gcc (GCC) 3.2.2
Remote g++ version: g++ (GCC) 3.2.2
Configure environment: CC=gcc CXX=g++ LDFLAGS=-Wl,-rpath,/usr/local/lib
make[5]: Entering directory `/local/build/R-1.7.0/src/library'
>>> Building/Updating