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python Programming Glossary: eigNumpy running at half the speed of MATLAB http://stackoverflow.com/questions/16178471/numpy-running-at-half-the-speed-of-matlab import time In 11 sysinfo.get_info 'atlas' Out 11 timeit eig randn 1E2 1E2 100 loops best of 3 13.4 ms per loop The same.. ms per loop The same code in Matlab runs twice as fast tic eig randn 1E2 toc 1000 6.5650 I install the non optimised ATAS deb.. atlas' ' usr lib atlas base' And the test code In 4 timeit eig randn 1E2 1E2 100 loops best of 3 16.8 ms per loop So no faster...
http://stackoverflow.com/questions/2298390/fitting-a-line-in-3d way to define it is the line whose direction vector is the eigenvector of the covariance matrix corresponding to the largest.. of the covariance matrix corresponding to the largest eigenvalue that passes through the mean of your data. That said.. that passes through the mean of your data. That said eig cov data is a really bad way to calculate it since it does a..
whats the fastest way to find eigenvalues/vectors in python? http://stackoverflow.com/questions/6684238/whats-the-fastest-way-to-find-eigenvalues-vectors-in-python the fastest way to find eigenvalues vectors in python Currently im using numpy which does.. of calculations faster python matrix numpy linear algebra eigenvalue share improve this question Three things Use the.. In scipy.linalg there are several functions to calculate eigenvalues the differences are not large though by careful choice..
sort eigenvalues and associated eigenvectors after using numpy.linalg.eig in python http://stackoverflow.com/questions/8092920/sort-eigenvalues-and-associated-eigenvectors-after-using-numpy-linalg-eig-in-pyt eigenvalues and associated eigenvectors after using numpy.linalg.eig.. eigenvalues and associated eigenvectors after using numpy.linalg.eig in python I'm using numpy.linalg.eig.. and associated eigenvectors after using numpy.linalg.eig in python I'm using numpy.linalg.eig to obtain a list of eigenvalues..
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