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thE girl wAnts to sEE pAnDAs划的是pAnDAs怎么提问

what animal does the girl want to see?

I want to see the pandas first.(the pandas提问) What do you want to see first?

Save the pandas The giant panda is known as the national treasure of China. The panda was a kind of ordinary animal in China long ago. However, for some reasons, too many of them have been killed. So the number of them is falli...

How do you like pandas?

删除某行的方法是df.drop('索引值',axis=0) 通过程序来判断,并得到索引值 判断st股票:'ST' in row['name'] #ST要大写,row是迭代dataframe时候的变量 判断3开头的股票: '3' in row['code'][0] #大概的程序就是下面这样,df是你得到的datafra...

a Out[13]: {'a': 1, 'b': 2} c=pd.Series(a) c Out[15]: a 1 b 2 dtype: int64 kuanbiao=pd.DataFrame(c) kuanbiao=pd.DataFrame(c).T kuanbiao Out[18]: a b 0 1 2

在最后加上engine='python'就可以了,即 users = pd.read_table('users.dat', sep='::',header = None, names = unames , engine = 'python')

需要安装的软件,步骤如下: 下载 setuptools,注意对应 Python 的版本,完成后运行 exe 即可完成安装 https://pypi.python.org/pypi/setuptools/1.4.1 setuptools-1.4.1.win32-py2.6.exe 下载 pip https://pypi.python.org/pypi/pip pip-1.4.1....

“loc”在index的标签上进行索引,范围包括start和end. “ix”先在index的标签上索引,索引不到就在index的位置上索引(如果index非全整数),不包括end. ix / loc 可以通过行号和行标签进行索引,比如 df.loc['a'] , df.loc[1], df.ix['a'] , df.ix[1]...

Why do you want to see pandas first ?

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