search for: symmetricmatrix

Sorry if this answer was already given, or if I miss the point, but did you have a look to "lowerTriangle" and "upperTriangle" functions in the "gdata" package ? # example # A<-matrix(rnorm(9),3,3) # B<-B<-matrix(NA,dim(A)[1],dim(A)[2]) # lowerTriangle(B)<-lowerTriangle(A) # upperTriangle(B)<-lowerTriangle(A) # diag(B)<-diag(A) Hope this helps,

...or 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)", ".local(x, origin, goal, ...)", c("passage(conduct_Tobler, origin =sites at coords[5, ], goal = sites at coords[3, ", " ])"), c("passage(conduct_Tobler, origin = sites at coords...

> > Hello All, > Please help me with this problem.I have been having this problem for over a month now and I could not find any information.I later realised that error is with MATRIX package. I am working on graph object using IGRAPH version 0.5.2-2 package & wanted to do Bonacich Power. What I have is undirected GRAPH. This is my graph object. The file 'Bonacich

After loading the package "Matrix" (version 0.995-12), using the summary function with an lme (package nlme version 3.1-75) object results in an error message saying Fehler in dim(x) : kein Slot des Namens "Dim" f?r dieses Objekt der Klasse "correlation" (translated: 'Error in dim(x) : no slot of the name "Dim" for this object of class

...b | > [1,] 2 1 | > [2,] 1 2 | > | > Matrix> (As <- Matrix(A, dimnames = list(NULL,NULL)))# -> symmetric | > 2 x 2 Matrix of class "dsyMatrix" | > [,1] [,2] | > [1,] 2 1 | > [2,] 1 2 | > | > Matrix> stopifnot(is(As, "symmetricMatrix"), | > Matrix+ is(Matrix(0, 3,3), "sparseMatrix"), | > Matrix+ is(Matrix(FALSE, 1,1), "sparseMatrix")) | 430,436c562,564 | < A: function (x, y, ...) | < { | < B <- function(a, b, ...) { | < match.call() | <...

...; > | > Matrix> (As <- Matrix(A, dimnames = list(NULL,NULL)))# -> symmetric > | > 2 x 2 Matrix of class "dsyMatrix" > | > [,1] [,2] > | > [1,] 2 1 > | > [2,] 1 2 > | > > | > Matrix> stopifnot(is(As, "symmetricMatrix"), > | > Matrix+ is(Matrix(0, 3,3), "sparseMatrix"), > | > Matrix+ is(Matrix(FALSE, 1,1), "sparseMatrix")) > | 430,436c562,564 > | < A: function (x, y, ...) > | < { > | < B <- function(a, b, ...) { >...

Hi Abby, Thanks a lot for your paraphrasing and your suggestion! The problem of wrapping the list into a S3/S4 object, i.e. subclassing array or matrix, is that one also has to define a bunch of methods for subsetting, joining, etc, in order to make it behave like a list array. The reason is that most R functions for subsetting, joining, etc. do not preserve class attributes of the input, which