From 626a5efcf9fc3b49684c1233ef86310a4f9e8f55 Mon Sep 17 00:00:00 2001
From: Richard Murray <murray@cds.caltech.edu>
Date: Tue, 16 Apr 2024 22:30:46 -0700
Subject: [PATCH] set response I/O labels from system for frequency response

---
 control/lti.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/control/lti.py b/control/lti.py
index cccb44a63..e631a6213 100644
--- a/control/lti.py
+++ b/control/lti.py
@@ -120,7 +120,8 @@ def frequency_response(self, omega=None, squeeze=None):
         response = self(s)
         return FrequencyResponseData(
             response, omega, return_magphase=True, squeeze=squeeze,
-            dt=self.dt, sysname=self.name, plot_type='bode')
+            dt=self.dt, sysname=self.name, inputs=self.input_labels,
+            outputs=self.output_labels, plot_type='bode')
 
     def dcgain(self):
         """Return the zero-frequency gain"""