From f85a3870479f4d259cee8944e9fff44a43713d0c Mon Sep 17 00:00:00 2001
From: F33RNI <xxoinvizionxx@gmail.com>
Date: Sat, 17 Dec 2022 03:30:50 +0300
Subject: [PATCH] Fix plotting with 1 channel

---
 GraphPlot.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/GraphPlot.py b/GraphPlot.py
index 15cde08..4199461 100644
--- a/GraphPlot.py
+++ b/GraphPlot.py
@@ -112,7 +112,7 @@ def plot_data(self, frequencies, levels, normalize: bool,
         :param normalize_ref: normalize reference data before applying it
         :return:
         """
-        if levels is not None and len(levels) > 1:
+        if levels is not None and len(levels) > 0:
             # Coppy levels array
             levels_copy = levels.copy()