Small fixes

tests/binary-1.rs

@@ -0,0 +1,28 @@
+extern crate intel_mkl_src;
+
+use approx::assert_abs_diff_eq;
+use kickscore as ks;
+
+#[test]
+fn binary_1() {
+    let mut model = ks::BinaryModel::new(ks::BinaryModelObservation::Probit);
+
+    let k_audrey = ks::kernel::Matern52::new(1.0, 2.0);
+    let k_benjamin = ks::kernel::Matern52::new(1.0, 2.0);
+
+    model.add_item("audrey", Box::new(k_audrey));
+    model.add_item("benjamin", Box::new(k_benjamin));
+
+    model.observe(&["audrey"], &["benjamin"], 0.0);
+    model.observe(&["audrey"], &["benjamin"], 1.0);
+    model.observe(&["audrey"], &["benjamin"], 2.0);
+
+    model.observe(&["audrey"], &["benjamin"], 3.0);
+
+    model.observe(&["benjamin"], &["audrey"], 4.0);
+    model.observe(&["benjamin"], &["audrey"], 5.0);
+    model.observe(&["benjamin"], &["audrey"], 6.0);
+    model.observe(&["benjamin"], &["audrey"], 7.0);
+
+    model.fit();
+}