diff --git a/stim/biomodels/network.h b/stim/biomodels/network.h
index bde6683..432dfbb 100644
--- a/stim/biomodels/network.h
+++ b/stim/biomodels/network.h
@@ -218,6 +218,14 @@ public:
 		return result;
 	}
 
+	///Set radius
+	void set_R(unsigned e, std::vector<T> radius) {
+		E[e].cylinder<T>::copy_r(radius);
+	}
+
+	void set_R(unsigned e, unsigned i, T radius) {
+		E[e].cylinder<T>::set_r(i, radius);
+	}
 	//scale the network by some constant value
 	//	I don't think these work??????
 	/*std::vector<vertex> operator*(T s){
--
libgit2 0.21.4