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python Programming Glossary: contiguoussubclasses of pandas' object work differently from subclass of other object? http://stackoverflow.com/questions/11979194/subclasses-of-pandas-object-work-differently-from-subclass-of-other-object instead of your subclass. Internally the data is stored in contiguous arrays and optimized for speed. The data is only boxed with..
Representing and solving a maze given an image http://stackoverflow.com/questions/12995434/representing-and-solving-a-maze-given-an-image Use the Magic Wand Tool with 0 tolerance point sample contiguous no anti aliasing. Check that edges at which selection breaks..
calling dot products and linear algebra operations in Cython? http://stackoverflow.com/questions/16114100/calling-dot-products-and-linear-algebra-operations-in-cython Note that BLAS and LAPACK expect all arrays to be Fortran contiguous modulo the lda b c parameters hence order F and double 1 which..
Find unique rows in numpy.array http://stackoverflow.com/questions/16970982/find-unique-rows-in-numpy-array 0 1 1 1 0 0 0 1 1 1 0 0 1 1 1 0 0 0 1 1 1 1 1 0 b np.ascontiguousarray a .view np.dtype np.void a.dtype.itemsize a.shape 1 _ idx.. array 0 1 1 1 0 0 1 1 1 0 0 0 1 1 1 1 1 0 EDIT Added np.ascontiguousarray following @seberg's recommendation. This will slow the.. This will slow the method down if the array is not already contiguous. EDIT The above can be slightly sped up perhaps at the cost..
Find the longest substring in alphabetical order http://stackoverflow.com/questions/19601903/find-the-longest-substring-in-alphabetical-order i found on another topic but it sorts the substring by contiguous characters and not by alphabetical order how do i do to correct..
Extract the SHA1 hash from a torrent file http://stackoverflow.com/questions/2572521/extract-the-sha1-hash-from-a-torrent-file BitTorrent treats multi file downloads as a single contiguous file . I'm using the generator function pieces_generator to..
Finding blank regions in image http://stackoverflow.com/questions/3310681/finding-blank-regions-in-image but then I have to determine if the regions are contiguous. I could do that with a graph type search We did plenty of DFS..
How can I improve my paw detection? http://stackoverflow.com/questions/4087919/how-can-i-improve-my-paw-detection share improve this question If you're just wanting semi contiguous regions there's already an easy implementation in Python SciPy.. thresh Find the separate contiguous regions coded_paws num_paws sp.ndimage.label filled . This returns.. an array with the regions coded by number each region is a contiguous area of a unique integer 1 up to the number of paws with zeros..
How do I convert a Python list into a C array by using ctypes? http://stackoverflow.com/questions/4145775/how-do-i-convert-a-python-list-into-a-c-array-by-using-ctypes for e in y x.append e How can I call the c_function with a contiguous list of elements in x I tried to cast x to a c_void_p but that..
http://stackoverflow.com/questions/4709510/itertools-product-speed-up up operations that would transform your array into a contiguous array. EDIT2 To get the exact analogue of numpy.array list itertools.product..
What's the most Pythonic way to identify consecutive duplicates in a list? http://stackoverflow.com/questions/6352425/whats-the-most-pythonic-way-to-identify-consecutive-duplicates-in-a-list got a list of integers and I want to be able to identify contiguous blocks of duplicates that is I want to produce an order preserving..
Is there a good way to do this type of mining? http://stackoverflow.com/questions/7076349/is-there-a-good-way-to-do-this-type-of-mining but I am still exploring a good approach and search for contiguous points because a break would not be considered a horizontal..
Concatenate Numpy arrays without copying http://stackoverflow.com/questions/7869095/concatenate-numpy-arrays-without-copying question The memory belonging to a Numpy array must be contiguous. If you allocated the arrays separately they are randomly scattered..
Rectangular bounding box around blobs in a monochrome image using python http://stackoverflow.com/questions/9525313/rectangular-bounding-box-around-blobs-in-a-monochrome-image-using-python how can i improve my paw detection Detects and isolates contiguous regions in the input array # Blur the input data a bit so the.. ndimage.morphology.binary_fill_holes thresh # Label each contiguous paw coded_paws num_paws ndimage.label filled # Isolate the extent..
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