python - How to use np.vectorize? - Stack Overflow
Feb 13, 2021 · Isn't the answer to How to use np.vectorize? usually "Don't. It just pretends to be a vectorized function but is just a loop with a different name"?
python - Performance of Pandas apply vs np.vectorize to create …
Oct 6, 2018 · I am using Pandas dataframes and want to create a new column as a function of existing columns. I have not seen a good discussion of the speed difference between …
Using Numpy Vectorize on Functions that Return Vectors
The purpose of np.vectorize is to transform functions which are not numpy-aware (e.g. take floats as input and return floats as output) into functions that can operate on (and return) numpy arrays.
How to vectorize with gcc? - Stack Overflow
Jan 3, 2009 · The v4 series of the gcc compiler can automatically vectorize loops using the SIMD processor on some modern CPUs, such as the AMD Athlon or Intel Pentium/Core chips. How …
simd - What is "vectorization"? - Stack Overflow
Sep 14, 2009 · Many CPUs have "vector" or "SIMD" instruction sets which apply the same operation simultaneously to two, four, or more pieces of data. Modern x86 chips have the SSE …
Fully convert a black and white image to a set of lines (aka …
Oct 11, 2019 · In other words I'm trying to vectorize the image to a set of lines. I have already looked at the HoughLinesTransform, however this does not cover every part of the image and …
How do I vectorize a function with Numba, when the function …
Jul 17, 2018 · I'd like to use Numba to vectorize a function that will evaluate each row of a matrix. This would essentially apply a Numpy ufunc to the matrix, as opposed to looping over the …
NumPy vectorization without the use of numpy.vectorize
Apr 18, 2022 · The vectorize function is provided primarily for convenience, not for performance. The implementation is essentially a for loop. Remember: the documentation is an API …
How can I vectorize an image using Python? - Stack Overflow
Dec 15, 2021 · How can I convert an image to a vectorised form? Normal image: Vectorised Image: I implemented image segmentation using the SLIC method. The result is close to the …
c++ - What does vectorization mean? - Stack Overflow
Oct 4, 2009 · Is it a good idea to vectorize the code? What are good practices in terms of when to do it? What happens underneath?