Fixed array test logic.

arkottke · Jan 18, 2018 · 2968dba · 2968dba
1 parent 18844ae
commit 2968dba
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/pyrvt/motions.py b/pyrvt/motions.py
@@ -226,10 +226,11 @@ def calc_osc_accels(self, osc_freqs, osc_damping=0.05, trans_func=[]):
             Peak pseudo-spectral acceleration of the oscillator
 
         """
-        if trans_func:
+        if len(trans_func):
             tf = np.asarray(trans_func)
         else:
             tf = np.ones_like(self.freqs)
+
         resp = np.array([
             self.calc_peak(
                 tf * calc_sdof_tf(self.freqs, of, osc_damping),