R/hypergraph_from_incidence_matrix.R

In HyperG: Hypergraphs in R

## HyperG R Package
## 
## Copyright (c) 2021 David J. Marchette <dmarchette@gmail.com>
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hypergraph_from_incidence_matrix <-
function(incidence_matrix)
{
	if(inherits(incidence_matrix,"simple_triplet_matrix")){
		x <- incidence_matrix
	   I <-  Matrix::sparseMatrix(i=x$i, j=x$j,
										dimnames=dimnames(x),
                              x=x$v,dims=c(x$nrow, x$ncol))
	} else {
		I <- Matrix::Matrix(incidence_matrix,sparse=TRUE)
	}
	if(is.null(colnames(I))){
	   colnames(I) <- as.character(1:ncol(incidence_matrix))
	}
	h <- list(M=I)
	class(h) <- 'hypergraph'
	h
}