Remove mlab.fftsurr

dstansby · dstansby · commit a865de75dd5e · 2018-09-20T12:39:03.000+01:00
diff --git a/doc/api/next_api_changes/2018-09-18-DS.rst b/doc/api/next_api_changes/2018-09-18-DS.rst
@@ -26,4 +26,5 @@ in Matplotlib 2.2 has been removed. See below for a list:
 - `mlab.slopes`
 - `mlab.stineman_interp`
 - `mlab.segments_intersect`
+- `mlab.fftsurr`
 - `mlab.donothing_callback`
diff --git a/lib/matplotlib/mlab.py b/lib/matplotlib/mlab.py
@@ -1194,22 +1194,6 @@ def cohere(x, y, NFFT=256, Fs=2, detrend=detrend_none, window=window_hanning,
     return Cxy, f
 
 
-@cbook.deprecated('2.2')
-def fftsurr(x, detrend=detrend_none, window=window_none):
-    """
-    Compute an FFT phase randomized surrogate of *x*.
-    """
-    if np.iterable(window):
-        x = window*detrend(x)
-    else:
-        x = window(detrend(x))
-    z = np.fft.fft(x)
-    a = 2.*np.pi*1j
-    phase = a * np.random.rand(len(x))
-    z = z*np.exp(phase)
-    return np.fft.ifft(z).real
-
-
 @cbook.deprecated('2.2')
 def movavg(x, n):
     """
diff --git a/lib/matplotlib/pylab.py b/lib/matplotlib/pylab.py
@@ -232,7 +232,7 @@
     amap, base_repr, binary_repr, csv2rec,
     demean, detrend, detrend_linear, detrend_mean, detrend_none,
     distances_along_curve, exp_safe,
-    fftsurr, frange,
+    frange,
     identity, inside_poly, is_closed_polygon, ispower2, isvector, l1norm,
     l2norm, log2, movavg, norm_flat,
     path_length, poly_below, poly_between,
