From 31c6412b19a10cfb78a3f3294e6acec9811a7ee8 Mon Sep 17 00:00:00 2001
From: Alexander Kabui
Date: Sun, 28 Nov 2021 19:01:16 +0300
Subject: fix bug:unpacking error when generator returns empty list

---
 gn3/computations/correlations.py | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/gn3/computations/correlations.py b/gn3/computations/correlations.py
index c5c56db..2f79c4a 100644
--- a/gn3/computations/correlations.py
+++ b/gn3/computations/correlations.py
@@ -79,9 +79,12 @@ def compute_sample_r_correlation(trait_name, corr_method, trait_vals,
 
     """
 
-    sanitized_traits_vals, sanitized_target_vals = list(
-        zip(*list(normalize_values(trait_vals, target_samples_vals))))
-    num_overlap = len(sanitized_traits_vals)
+    try:
+        sanitized_traits_vals, sanitized_target_vals = list(
+            zip(*list(normalize_values(trait_vals, target_samples_vals))))
+        num_overlap = len(sanitized_traits_vals)
+    except ValueError:
+        return
 
     if num_overlap > 5:
 
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