From 9877da0010ceebe1526c74a19ac43694f4a2ba61 Mon Sep 17 00:00:00 2001
From: Eric Weine <ericw456@mit.edu>
Date: Mon, 11 Mar 2024 18:50:07 -0400
Subject: [PATCH] updated to more general sparse matrix class

---
 R/argument_checking.R | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/R/argument_checking.R b/R/argument_checking.R
index 7ab1390..551d346 100644
--- a/R/argument_checking.R
+++ b/R/argument_checking.R
@@ -1,7 +1,7 @@
 # Return true if x is a compressed, sparse, column-oriented numeric
 # matrix.
 is.sparse.matrix <- function (x)
-  (inherits(x,"dgCMatrix") || inherits(x,"dgTMatrix")) && is.numeric(x@x)
+  inherits(x,"dsparseMatrix") && is.numeric(x@x)
 
 # Verify that x is matrix with finite, numeric entries.
 verify.matrix <- function (x, arg.name = deparse(substitute(x))) {