Displaying 6 results from an estimated 6 matches for "symmpart".
2011 Feb 04
2
always about positive definite matrix
...is basic idea.
4. I recommend in the summary you mention nearPD but not
posdefify, because nearPD was written more recently using the results of
research not available to the authors when posdefify was written.
MARTIN: There is a typo in the first line of the documentation for
"symmpart". It currently reads, "symmpart(x) computes the symmetric
part (x + t(x))/2 and the skew symmetric part (x - t(x))/2 of a square
matrix x.". It should read, "symmpart(x) computes the symmetric part (x
+ t(x))/2 and skewpart the skew symmetric part (x - t(x))/2 of a square...
2018 Feb 06
1
gdistance::shortestPath throws error "not a symmetric matrix"
Hi,
Calling
gdistance::shortestPath
gives me the error
Error in asMethod(object) :
not a symmetric matrix; consider forceSymmetric() or symmpart()
The output of dput(.traceback()) is
pairlist("stop(\"not a symmetric matrix; consider forceSymmetric() or symmpart()\")",
"asMethod(object)",
"as(Laplacian,\"symmetricMatrix\")",
".Laplacian(x)", ".flowMap(x, ci, cj, tc)&q...
2017 Nov 20
2
package check fail on Windows-release only?
...fac2Sparse, forceSymmetric, T2graph, graph2T,
anyDuplicatedT, uniqTsparse, isTriangular, isDiagonal, isLDL,
is.null.DN, invPerm, lu, nearPD, nnzero, formatSpMatrix,
formatSparseM, .formatSparseSimple, printSpMatrix, printSpMatrix2,
qrR, rankMatrix, readHB, readMM, sparse.model.matrix, sparseVector,
symmpart, skewpart, tril, triu, updown, pack, unpack,
.updateCHMfactor, .validateCsparse, writeMM, cBind, rBind
ERROR: lazy loading failed for package 'rockchalk'
* removing 'd:/Rcompile/CRANpkg/lib/3.4/rockchalk'
* restoring previous 'd:/Rcompile/CRANpkg/lib/3.4/rockchalk'
--
Pau...
2017 Nov 21
0
package check fail on Windows-release only?
...> anyDuplicatedT, uniqTsparse, isTriangular, isDiagonal, isLDL,
> is.null.DN, invPerm, lu, nearPD, nnzero, formatSpMatrix,
> formatSparseM, .formatSparseSimple, printSpMatrix, printSpMatrix2,
> qrR, rankMatrix, readHB, readMM, sparse.model.matrix, sparseVector,
> symmpart, skewpart, tril, triu, updown, pack, unpack,
> .updateCHMfactor, .validateCsparse, writeMM, cBind, rBind
> ERROR: lazy loading failed for package 'rockchalk'
> * removing 'd:/Rcompile/CRANpkg/lib/3.4/rockchalk'
> * restoring previous 'd:/Rcompile/CRAN...
2008 Mar 28
0
"The Matrix" is approaching version 1.0-0
...t; of
all(!) kinds of S/R indexing and some new generic functions such as
lu() {LU decomposition}
Schur(), BunchKaufman(),
norm(), rcond() {Matrix norms and condition numbers}
expm() {Matrix exponential},
band(), triu(), tril() {extract band-diagonal or triangular sub-matrices}
symmpart(), skewpart() { (x + t(x))/2 and (x - t(x)) / 2 }
are provided. Further, an extension to the xtabs function
xtabs(*, sparse=TRUE)
for large sparse, two-way contingency tables
and coercion of one *factor* (possibly crossed with one <numeric>)
to the corresponding (potentially huge) spar...
2008 Mar 28
0
"The Matrix" is approaching version 1.0-0
...t; of
all(!) kinds of S/R indexing and some new generic functions such as
lu() {LU decomposition}
Schur(), BunchKaufman(),
norm(), rcond() {Matrix norms and condition numbers}
expm() {Matrix exponential},
band(), triu(), tril() {extract band-diagonal or triangular sub-matrices}
symmpart(), skewpart() { (x + t(x))/2 and (x - t(x)) / 2 }
are provided. Further, an extension to the xtabs function
xtabs(*, sparse=TRUE)
for large sparse, two-way contingency tables
and coercion of one *factor* (possibly crossed with one <numeric>)
to the corresponding (potentially huge) spar...