Nothing
#' isSymmetric
#'
#' Tests if a distributed matrix is symmetric.
#'
#' The test is performed by comparing the object against its transpose.
#'
#' @param object
#' Distributed matrix
#' @param tol
#' Numerical tolerance for the comparison.
#' @param ...
#' Additional arguments passed to \code{all.equal()}.
#'
#' @name isSymmetric
#' @rdname isSymmetric
NULL
setGeneric(name = "isSymmetric", useAsDefault = base::isSymmetric, package="pbdDMAT")
#' @rdname isSymmetric
#' @export
setMethod("isSymmetric", signature(object="ddmatrix"),
function (object, tol = 100 * .Machine$double.eps, ...)
{
if (object@dim[1L] != object@dim[2L])
return(FALSE)
test <- all.equal(object, t(object), tolerance = tol, ...)
pbdMPI::comm.all(isTRUE(test))
}
)
### TODO method for dsmatrix
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