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-rw-r--r--numpy/fft/fftpack.py2
1 files changed, 2 insertions, 0 deletions
diff --git a/numpy/fft/fftpack.py b/numpy/fft/fftpack.py
index fb7c19dd5..5b0d326d1 100644
--- a/numpy/fft/fftpack.py
+++ b/numpy/fft/fftpack.py
@@ -36,6 +36,8 @@ def _raw_fft(a, n=None, axis=-1, init_function=fftpack.cffti,
a = asarray(a)
if n == None: n = a.shape[axis]
+
+ if n < 1: raise ValueError("Invalid number of FFT data points (%d) specified." % n)
try:
wsave = fft_cache[n]