Use serialized matrix representation in test suite
diff --git a/datok_test.go b/datok_test.go
index 4b4bd1e..d1c0165 100644
--- a/datok_test.go
+++ b/datok_test.go
@@ -1013,3 +1013,8 @@
// BenchmarkToDoubleArray-4 69192 17355 ns/op 10704 B/op 29 allocs/op
// BenchmarkToDoubleArrayLarger-4 16 65042885 ns/op 6357794 B/op 2576 allocs/op
// BenchmarkTransduceMatrix-4 45404 25156 ns/op 8240 B/op 3 allocs/op
+// 2021-10-02
+// BenchmarkTransduce-4 47676 25398 ns/op 8240 B/op 3 allocs/op
+// BenchmarkToDoubleArray-4 71919 16083 ns/op 10702 B/op 29 allocs/op
+// BenchmarkToDoubleArrayLarger-4 16 68012819 ns/op 6357920 B/op 2578 allocs/op
+// BenchmarkTransduceMatrix-4 51529 23678 ns/op 8240 B/op 3 allocs/op