python Programming Glossary: numpy.empty
creating small arrays in cython takes a humongous amount of time http://stackoverflow.com/questions/18410342/creating-small-arrays-in-cython-takes-a-humongous-amount-of-time 10 a numpy.random.random 10 a numpy.cumsum a a a 1 r numpy.empty 10 int print binary search creates an array N and performs N.. a u r ' sstr print time for just np.empty timeit.timeit 'numpy.empty 10 int ' sstr The binary search implementation takes in the..
Why is Python class not recognizing static variable http://stackoverflow.com/questions/19985758/why-is-python-class-not-recognizing-static-variable alphatbet abcdefghijklmnopqrstuvwxyz def __init__ self pop numpy.empty popSize object target getTarget targetSize len target When the.. alphatbet abcdefghijklmnopqrstuvwxyz def __init__ self pop numpy.empty self.popSize object target getTarget targetSize len target ..
Are NumPy's math functions faster than Python's? http://stackoverflow.com/questions/3650194/are-numpys-math-functions-faster-than-pythons loop lebigot@weinberg ~ python m timeit s 'import numpy a numpy.empty 1000 a.fill 3.15 ' 'numpy.abs a ' 100000 loops best of 3 6.47..
initialize a numpy array http://stackoverflow.com/questions/4535374/initialize-a-numpy-array a new array of given shape and type filled with ones. or numpy.empty Return a new array of given shape and type without initializing..
Numpy: Joining structured arrays? http://stackoverflow.com/questions/5355744/numpy-joining-structured-arrays offsets numpy.r_ 0 sizes.cumsum n len arrays 0 joint numpy.empty n offsets 1 dtype numpy.uint8 for a size offset in zip arrays..
Python: Making numpy default to float32 http://stackoverflow.com/questions/5721831/python-making-numpy-default-to-float32 the standard numpy constructors so numpy.zeros numpy.ones numpy.empty . That should go pretty close to keeping everything in float32...
How to copy data from a numpy array to another http://stackoverflow.com/questions/6431973/how-to-copy-data-from-a-numpy-array-to-another a pointer to my array that cannot change. For example a numpy.empty n dtype complex for i in xrange a.size a i b i It is possible.. python numpy share improve this question I believe a numpy.empty_like b a b will make a deep copy quickly. As Funsi mentions..
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