modeling_forces::smooth Namespace Reference

Functions
def	blur_image
def	gauss_kern
def	smooth
def	smooth_demo
Variables
tuple	Z = np.cos((X**2+Y**2)/200.)
tuple	Z2 = blur_image(Z, 3)

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Detailed Description

cookb_signalsmooth.py

from: http://scipy.org/Cookbook/SignalSmooth

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Function Documentation

def modeling_forces.smooth.blur_image	(		im,
			n,
			ny = None
	)

blurs the image by convolving with a gaussian kernel of typical
    size n. The optional keyword argument ny allows for a different
    size in the y direction.

Definition at line 83 of file smooth.py.

def modeling_forces.smooth.gauss_kern	(		size,
			sizey = None
	)

Returns a normalized 2D gauss kernel array for convolutions 

Definition at line 72 of file smooth.py.

def modeling_forces.smooth.smooth	(		x,
			window_len = 10,
			window = 'hanning'
	)

smooth the data using a window with requested size.

This method is based on the convolution of a scaled window with the signal.
The signal is prepared by introducing reflected copies of the signal 
(with the window size) in both ends so that transient parts are minimized
in the begining and end part of the output signal.

input:
    x: the input signal 
    window_len: the dimension of the smoothing window
    window: the type of window from 'flat', 'hanning', 'hamming', 'bartlett', 'blackman'
        flat window will produce a moving average smoothing.

output:
    the smoothed signal
    
example:

import numpy as np    
t = np.linspace(-2,2,0.1)
x = np.sin(t)+np.random.randn(len(t))*0.1
y = smooth(x)

see also: 

numpy.hanning, numpy.hamming, numpy.bartlett, numpy.blackman, numpy.convolve
scipy.signal.lfilter
 
TODO: the window parameter could be the window itself if an array instead of a string   

Definition at line 10 of file smooth.py.

def modeling_forces.smooth.smooth_demo

(

)

Definition at line 93 of file smooth.py.

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Variable Documentation

tuple modeling_forces::smooth::Z = np.cos((X**2+Y**2)/200.)

Definition at line 133 of file smooth.py.

tuple modeling_forces::smooth::Z2 = blur_image(Z, 3)

Definition at line 134 of file smooth.py.