matplotlib.axes.Axes.phase_spectrum  
Axes.phase_spectrum(x, Fs=None, Fc=None, window=None, pad_to=None, sides=None, *, data=None, **kwargs)  
Plot the phase spectrum. Call signature: phase_spectrum(x, Fs=2, Fc=0,  window=mlab.window_hanning,
               pad_to=None, sides='default', **kwargs)
 Compute the phase spectrum (unwrapped angle spectrum) of x. Data is padded to a length of pad_to and the windowing function window is applied to the signal.    
Parameters:

x : 1-D array or sequence Array or sequence containing the data Fs : scalar The sampling frequency (samples per time unit). It is used to calculate the Fourier frequencies, freqs, in cycles per time unit. The default value is 2. window : callable or ndarray A function or a vector of length NFFT. To create window vectors see window_hanning(), window_none(), numpy.blackman(), numpy.hamming(), numpy.bartlett(), scipy.signal(), scipy.signal.get_window(), etc. The default is window_hanning(). If a function is passed as the argument, it must take a data segment as an argument and return the windowed version of the segment. sides : [ ‘default’ | ‘onesided’ | ‘twosided’ ] Specifies which sides of the spectrum to return. Default gives the default behavior, which returns one-sided for real data and both for complex data. ‘onesided’ forces the return of a one-sided spectrum, while ‘twosided’ forces two-sided. pad_to : integer The number of points to which the data segment is padded when performing the FFT. While not increasing the actual resolution of the spectrum (the minimum distance between resolvable peaks), this can give more points in the plot, allowing for more detail. This corresponds to the n parameter in the call to fft(). The default is None, which sets pad_to equal to the length of the input signal (i.e. no padding). Fc : integer The center frequency of x (defaults to 0), which offsets the x extents of the plot to reflect the frequency range used when a signal is acquired and then filtered and downsampled to baseband.   
Returns:

spectrum : 1-D array The values for the phase spectrum in radians (real valued) freqs : 1-D array The frequencies corresponding to the elements in spectrum line : a Line2D instance The line created by this function   Other Parameters: 
 

**kwargs : Keyword arguments control the Line2D properties:   
Property Description   
agg_filter unknown  
alpha float (0.0 transparent through 1.0 opaque)  
animated [True | False]  

antialiased or aa [True | False]  
clip_box a matplotlib.transforms.Bbox instance  
clip_on [True | False]  
clip_path [ (Path, Transform) | Patch | None ]  

color or c any matplotlib color  
contains a callable function  
dash_capstyle [‘butt’ | ‘round’ | ‘projecting’]  
dash_joinstyle [‘miter’ | ‘round’ | ‘bevel’]  
dashes sequence of on/off ink in points  
drawstyle [‘default’ | ‘steps’ | ‘steps-pre’ | ‘steps-mid’ | ‘steps-post’]  
figure a matplotlib.figure.Figure instance  
fillstyle [‘full’ | ‘left’ | ‘right’ | ‘bottom’ | ‘top’ | ‘none’]  
gid an id string  
label string or anything printable with ‘%s’ conversion.  

linestyle or ls [‘solid’ | ‘dashed’, ‘dashdot’, ‘dotted’ | (offset, on-off-dash-seq) | '-' | '--' | '-.' | ':' | 'None' | ' ' | '']  

linewidth or lw float value in points  
marker A valid marker style  

markeredgecolor or mec any matplotlib color  

markeredgewidth or mew float value in points  

markerfacecolor or mfc any matplotlib color  

markerfacecoloralt or mfcalt any matplotlib color  

markersize or ms float  
markevery [None | int | length-2 tuple of int | slice | list/array of int | float | length-2 tuple of float]  
path_effects unknown  
picker float distance in points or callable pick function fn(artist, event)
  
pickradius float distance in points  
rasterized [True | False | None]  
sketch_params unknown  
snap unknown  
solid_capstyle [‘butt’ | ‘round’ | ‘projecting’]  
solid_joinstyle [‘miter’ | ‘round’ | ‘bevel’]  
transform a matplotlib.transforms.Transform instance  
url a url string  
visible [True | False]  
xdata 1D array  
ydata 1D array  
zorder any number       See also  
magnitude_spectrum()
 
magnitude_spectrum() plots the magnitudes of the corresponding frequencies. 
angle_spectrum()
 
angle_spectrum() plots the wrapped version of this function. 
specgram()
 
specgram() can plot the phase spectrum of segments within the signal in a colormap. In addition to the above described arguments, this function can take a data keyword argument. If such a data argument is given, the following arguments are replaced by data[<arg>]: * All arguments with the following names: ‘x’.   
 

    
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