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python Programming Glossary: np.intCython: “fatal error: numpy/arrayobject.h: No such file or directory” http://stackoverflow.com/questions/14657375/cython-fatal-error-numpy-arrayobject-h-no-such-file-or-directory cimport numpy as np cimport cython cdef inline np.ndarray np.int ndim 1 fbincount np.ndarray np.int_t ndim 1 x cdef int m np.amax.. cdef inline np.ndarray np.int ndim 1 fbincount np.ndarray np.int_t ndim 1 x cdef int m np.amax x 1 cdef int n x.size cdef unsigned.. x 1 cdef int n x.size cdef unsigned int i cdef np.ndarray np.int_t ndim 1 c np.zeros m dtype np.int for i in xrange n c unsigned..
Handling of duplicate indices in NumPy assignments http://stackoverflow.com/questions/15973827/handling-of-duplicate-indices-in-numpy-assignments simple example import numpy as np indices np.zeros 5 dtype np.int a indices np.arange 5 a # array 4 Another example import numpy..
http://stackoverflow.com/questions/16618499/numpy-datetime64-in-recarray In 80 np.array 0 np.datetime64 '2012 05 17' .... dtype 'i' np.int 'date' 'datetime64 D ' Out 80 array 0 datetime.date 2012 5 17.. 05 17' object In 81 np.array 0 '2012 05 17' .... dtype 'i' np.int 'date' 'datetime64 D ' Out 81 array 0 datetime.date 2012 5 17.. the problem In 87 np.array 0 '2012 05 17' .... dtype 'i' np.int 'date' 'datetime64' ValueError Cannot create a NumPy datetime..
sorting arrays in numpy by column http://stackoverflow.com/questions/2828059/sorting-arrays-in-numpy-by-column 0 1 In 3 np.sort a.view 'i8 i8 i8' order 'f1' axis 0 .view np.int Out 3 array 0 0 1 1 2 3 4 5 6 To sort it in place In 6 a.view..
Getting data from ctypes array into numpy http://stackoverflow.com/questions/4355524/getting-data-from-ctypes-array-into-numpy parameter to frombuffer furthermore I wonder why you use np.int while you said earlier that the array contains double s. I'm..
How to extract an arbitrary line of values from a numpy array? http://stackoverflow.com/questions/7878398/how-to-extract-an-arbitrary-line-of-values-from-a-numpy-array y1 num # Extract the values along the line zi z x.astype np.int y.astype np.int # Plot... fig axes plt.subplots nrows 2 axes.. the values along the line zi z x.astype np.int y.astype np.int # Plot... fig axes plt.subplots nrows 2 axes 0 .imshow z axes.. length # Extract the values along the line zi z x.astype np.int y.astype np.int # Plot... fig axes plt.subplots nrows 2 axes..
Function application over numpy's matrix row/column http://stackoverflow.com/questions/8079061/function-application-over-numpys-matrix-row-column For example import numpy as np array np.arange 6 .view 'x' np.int 'y' np.int print array # 0 1 2 3 4 5 print array 'x' # 0 2 4.. import numpy as np array np.arange 6 .view 'x' np.int 'y' np.int print array # 0 1 2 3 4 5 print array 'x' # 0 2 4 print array..
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