57877615f5
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59 lines
1.6 KiB
Text
Executable file
59 lines
1.6 KiB
Text
Executable file
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X.flat returns an indexable 1-D iterator (mostly similar to an array
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but always 1-d) --- only has .copy and .__array__ attributes of an array!!!
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.typecode() --> .dtype.char
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.iscontiguous() --> .flags['CONTIGUOUS'] or .flags.contiguous
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.byteswapped() -> .byteswap()
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.itemsize() -> .itemsize
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.toscalar() -> .item()
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If you used typecode characters:
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'c' -> 'S1' or 'c'
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'b' -> 'B'
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'1' -> 'b'
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's' -> 'h'
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'w' -> 'H'
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'u' -> 'I'
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C -level
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some API calls that used to take PyObject * now take PyArrayObject *
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(this should only cause warnings during compile and not actual problems).
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PyArray_Take
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These commands now return a buffer that must be freed once it is used
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using PyMemData_FREE(ptr);
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a->descr->zero --> PyArray_Zero(a)
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a->descr->one --> PyArray_One(a)
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Numeric/arrayobject.h --> numpy/oldnumeric.h
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# These will actually work and are defines for PyArray_BYTE,
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# but you really should change it in your code
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PyArray_CHAR --> PyArray_CHAR
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(or PyArray_STRING which is more flexible)
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PyArray_SBYTE --> PyArray_BYTE
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Any uses of character codes will need adjusting....
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use PyArray_XXXLTR where XXX is the name of the type.
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If you used function pointers directly (why did you do that?),
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the arguments have changed. Everything that was an int is now an intp.
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Also, arrayobjects should be passed in at the end.
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a->descr->cast[i](fromdata, fromstep, todata, tostep, n)
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a->descr->cast[i](fromdata, todata, n, PyArrayObject *in, PyArrayObject *out)
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anything but single-stepping is not supported by this function
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use the PyArray_CastXXXX functions.
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