numpy.unwrap¶

numpy.unwrap(p,discont=3.141592653589793,axis=-1)[source]¶

Unwrap by changing deltas between values to 2*pi complement.

Unwrap radian phasep by changing absolute jumps greater thandiscont to their 2*pi complement along the given axis.

Parameters:	p:array_like Input array. discont:float, optional Maximum discontinuity between values, default ispi. axis:int, optional Axis along which unwrap will operate, default is the last axis.
Returns:	out:ndarray Output array.

See also

rad2deg,deg2rad

Notes

If the discontinuity inp is smaller thanpi, but larger thandiscont, no unwrapping is done because taking the 2*pi complementwould only make the discontinuity larger.

Examples

>>>phase=np.linspace(0,np.pi,num=5)>>>phase[3:]+=np.pi>>>phasearray([ 0.        ,  0.78539816,  1.57079633,  5.49778714,  6.28318531])>>>np.unwrap(phase)array([ 0.        ,  0.78539816,  1.57079633, -0.78539816,  0.        ])