From 1c843531c3c6ca4890329fee93749050e74b8b22 Mon Sep 17 00:00:00 2001
From: Julia Kukulies <44163060+JuliaKukulies@users.noreply.github.com>
Date: Wed, 25 Oct 2023 11:57:04 -0600
Subject: [PATCH] Update tobac/segmentation.py

Set default value for ncells as 0 instead of None to preserve behaviour from the previous implementation

Co-authored-by: William Jones <william.jones@physics.ox.ac.uk>
---
 tobac/segmentation.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tobac/segmentation.py b/tobac/segmentation.py
index 6aa14f13..8eeadb21 100644
--- a/tobac/segmentation.py
+++ b/tobac/segmentation.py
@@ -1022,6 +1022,7 @@ def segmentation_timestep(
         np.array(field_in.data.copy()),
         features=features_out,
         statistic={"ncells": np.count_nonzero},
+        default=0,
     )
 
     # compute additional statistics, if requested