numpyに関するchorinskyのブックマーク (7)
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chorinsky 2011/10/30
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とりあえずPythonで行列の演算 - Py
とにかく行列の掛け算さえできればいい！と思ってごちゃごちゃやってみた 参考にさせてもらったサイト 良いもの。悪いもの。 機械学習序曲(仮) １つ目のサイトで味をしめたので、２つ目のサイトに乗ってたPythonのプログラムを実行してみた。 ERROR！ なんか（かなり）簡単に言うとnumpyのバージョンが違うらしい ということで自分なりに書き換えて見ました〜 ただ書き換えただけのプログラムを載せるのは憚れるので 変更点だけ！ from Numeric import * from LinearAlgebra import * ↓ from scipy import * from numpy import * A = init('A.dat', num) B = init('B.dat', num) ↓ A = init('A.dat', num) B = init('B.dat', num)
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SciPy - Installation
This page assumes that you are comfortable with using a terminal and happy to learn how to use a package manager. If you are a beginner and just want to get started with SciPy as quickly as possible, check out the beginner installation guide! The recommended method of installing SciPy depends on your preferred workflow. The common workflows can roughly be broken down into the following categories:
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A quick hack to use the MKL with numpy/scipy on Linux – Matthieu Brucher's blog
I’ve promised to make an update whenever I would find a solution to the problem I had some months ago when I tried to use the latest MKL with numpy. Well, there was a simple hack that did the trick. It is far from being perfect, but at least, the tests pass now. So the only thing you have to do is to export the LD_PRELOAD variable:
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NumPy/MKL vs Matlab performance
Further to the post I wrote on the MKL performance improvement on NumPy, I have tried to get some figures comparing it to Matlab. Here are some results. Any suggestion to improve the comparison is welcome. I will update it with the different values I do collect. Here is the Matlab script I used to compare the Python code : disp('Eig');tic;data=rand(500,500);eig(data);toc; disp('Svd');tic;data=rand
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Installing Numpy 1.5 for Python 3 [Archive] - Ubuntu Forums
Hi, I'm trying to install Numpy for Python 3 and am hoping that someone here can give me a hand. I've downloaded the source, extracted it and run: sudo python3 setup.py build sudo python3 setup.py install Now, when I run python3 and then import numpy from the interpreter, I get the error: Python 3.1.2 (release31-maint, Sep 17 2010, 20:34:23) [GCC 4.4.5] on linux2 Type "help", "copyright", "credits
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