fixed botched import

murrayrm · murrayrm · commit e0e76be3a0ae · 2012-10-07T16:21:45.000Z
diff --git a/src/freqplot.py b/src/freqplot.py
@@ -46,7 +46,7 @@
 import numpy as np
 from ctrlutil import unwrap
 from bdalg import feedback
-from dtime import isdtime
+from lti import isdtime
 
 #
 # Main plotting functions
diff --git a/src/margins.py b/src/margins.py
@@ -50,7 +50,7 @@
 import xferfcn
 from freqplot import bode
 import numpy as np
-from dtime import isdtime
+from lti import isdtime
 
 # gain and phase margins
 # contributed by Sawyer B. Fuller <minster@caltech.edu>
diff --git a/src/modelsimp.py b/src/modelsimp.py
@@ -45,7 +45,7 @@
 from exception import *
 from statefbk import *
 from statesp import StateSpace
-from dtime import isdtime, isctime
+from lti import isdtime, isctime
 
 # Hankel Singular Value Decomposition
 #   The following returns the Hankel singular values, which are singular values 
