Python 2.6.6 (r266:84297, Aug 24 2010, 18:46:32) [MSC v.1500 32 bit (Intel)]

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IPython 0.12.dev -- An enhanced Interactive Python.

? -> Introduction and overview of IPython's features.

%quickref -> Quick reference.

help -> Python's own help system.

object? -> Details about 'object', use 'object??' for extra details.

%guiref -> A brief reference about the graphical user interface.

In [1]: import wavepy as wv

In [2]: x=array([])

In [3]: J=2

In [4]: nm='sym4'

In [5]: input=open('piecepoly.txt','r')

In [6]: for file in input:

   ...: x=append(x,float(file))

   ...:

In [7]: input.clos()

---------------------------------------------------------------------------

AttributeError Traceback (most recent call last)

C:\Python26\work\<ipython-input-7-a02641ca887a> in <module>()

----> 1 input.clos()

AttributeError: 'file' object has no attribute 'clos'

In [8]: input.close()

In [9]: plot(x),title('Input Signal')

Out[9]: ([<matplotlib.lines.Line2D at 0x2670730>], <matplotlib.text.Text at 0x26fb350>)

In [10]: [swtop,length]=wv.dwt.swt(x,J,nm)

In [11]: length

Out[11]: 1024

In [12]: plot(swtop),title('Full SWT Decomposition')

Out[12]: ([<matplotlib.lines.Line2D at 0x293b870>], <matplotlib.text.Text at 0x27ac510>)

In [13]: l=length

In [14]: l

Out[14]: 1024

In [15]: plot(swtop[0:l]),title('Approximation Coefficients at Level 2')

Out[15]: ([<matplotlib.lines.Line2D at 0x293bd70>], <matplotlib.text.Text at 0x296be10>)

In [16]: l=length

In [17]: l

Out[17]: 1024

In [18]: plot(swtop[l:l+length]),title('Detail Coefficients at Level 2')

Out[18]: ([<matplotlib.lines.Line2D at 0x29aa0d0>], <matplotlib.text.Text at 0x2c09390>)

In [19]: l

Out[19]: 1024

In [20]: l=l+length

In [21]: l

Out[21]: 2048

In [22]: plot(swtop[l:l+length]),title('Detail Coefficients at Level 1')

Out[22]: ([<matplotlib.lines.Line2D at 0x2b47e70>], <matplotlib.text.Text at 0x2b66910>)

In [23]: iswtop=wv.dwt.iswt(swtop,J,nm)

In [24]: plot(iswtop),title('Reconstructed Signal')

Out[24]: ([<matplotlib.lines.Line2D at 0x2cb24b0>], <matplotlib.text.Text at 0x2dc3710>)

In [25]: