Temporary set the minimum number of points to be 2

backend/src/manager.py

@@ -37,7 +37,7 @@ class Manager:
         x2_col: int,
         y_col: int,
     ) -> None:
-        self.dataset = self._compute_dataset(
+        dataset = self._compute_dataset(
             dataset_type,
             function,
             x1_range_input,
@@ -52,6 +52,13 @@ class Manager:
             y_col,
         )
 
+        if len(dataset.x1) == 0:
+            raise ValueError("Dataset cannot be empty")
+        elif len(dataset.x1) == 1:
+            # todo - remove this condition after fixing weird cases
+            raise ValueError("Dataset must contain at least 2 points")
+        self.dataset = dataset
+
     def _compute_dataset(
         self,
         dataset_type: str,

frontends/gradio/main.py

@@ -231,7 +231,7 @@ def launch():
                             label="Number of points",
                             value=default_num_points,
                             interactive=True,
-                            minimum=1,
+                            minimum=2,  # todo - set to 1 after fixing weird cases
                             maximum=100,
                             step=1,
                         )