【脚本语言系列】关于Python数值计算Pandas,你需要知道的事

如何使用Pandas

pip install pandas
easy_install pandas

git clone git://github.com/pydata/pandas.git
cd pandas
python setup.py install

data = {}

for i in xrange(len(symbols)):
data[symbols[i]] = numpy.diff(numpy.log(close[i]))

df = pandas.DataFrame(data, index = dates[0][:-1], columns = symbols)

print df.corr()
df.plot()

什么是Pandas