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## R-benchmark-25 from http://r.research.att.com/benchmarks/R-benchmark-25.R
# brew install r [--with-openblas]

$ Rscript R-benchmark-25.R                              2014-03-01 (六) 00:41 CST
Loading required package: Matrix
Loading required package: methods
Loading required package: lattice
Loading required package: SuppDists
警告訊息：
In library(package, lib.loc = lib.loc, character.only = TRUE, logical.return = TRUE,  :

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環境設定

• Visual Studio (VS) 2013 (2008, 2010 亦可）
• Python Tools for Visual Studio (PTVS) 2.1
• [Miniconda3][conda3]（Python 官方的安裝檔亦可）

PTVS 的版本可以透過 VS 中 HELP -> About Microsoft Visual Studio 查看。Python 的版本選擇非常多，請參見 PTVS 說明。在這邊是選用 Miniconda3 (Python 3.4) 示範。

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import numpy as np
rs = np.random.RandomState(seed=5566)
n_conditions = 10

# Here we simulate a complex computation, for example, analogy of the magnitude
# of gradient decent which expects to be strictly positive. But from the result
# we find that it seems to be sometimes negative, we wish to find out when and
# what condition our program produces bogus ouput.
#
# This is the case to use pdb and condition break point

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from datetime import datetime
from pytz import timezone  # pip install pytz


# Setup remote time
remote_tz = timezone('US/Pacific')                           # PST for example
remote_dt = remote_tz.localize(datetime(2015, 5, 1, 14, 0))  # May 1, 2015 PM2:00 PST

# Setup Taipei local time
tpe = timezone('Asia/Taipei')

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$ export CC=clang
$ export CXX=clang
$ export FFLAGS=-ff2c
$ git clone https://github.com/numpy/numpy.git
$ cd numpy
$ python3 setup.py build
$ python3 setup.py install

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if a==b:
    with open('f.txt') as f:
        # do something
    # do something