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-rw-r--r--pyspike/cython_add.pyx4
1 files changed, 3 insertions, 1 deletions
diff --git a/pyspike/cython_add.pyx b/pyspike/cython_add.pyx
index 817799e..ac64005 100644
--- a/pyspike/cython_add.pyx
+++ b/pyspike/cython_add.pyx
@@ -230,4 +230,6 @@ def add_discrete_function_cython(double[:] x1, double[:] y1, double[:] mp1,
# the last value is again the end of the interval
# only use the data that was actually filled
- return x_new[:index+1], y_new[:index+1], mp_new[:index+1]
+ return (np.array(x_new[:index+1]),
+ np.array(y_new[:index+1]),
+ np.array(mp_new[:index+1]))