ipython
Hi, I work with Python 3.3. I downloaded an IPython executable version from http://www.lfd.uci.edu/~gohlke/pythonlibs/ I installed it but no shortcut appears in my start menu. How can I launch it or alternatively is there some other free source of executable file for Windows 7? Many Thanks -- http://mail.python.org/mailman/listinfo/python-list
Re: ipython
I did not see the massage when installation finisched. Sorry! Many Thanks!!! > > The IPython installer actually mentions this when it finishes > > installing: > > > > "Distribute (setuptools) is required to create Start Menu items. > > Re-run this installer after installing distribute to get Start > > Menu items." > > > > You can grab the setup for distribute from: > > > > http://python-distribute.org/distribute_setup.py > > > > If your Python 3.3 installation is part of your PATH, you simply do: > > > > python3 distribute_setup.py install > > > > When it's finished, run the IPython installer again and you'll find > > it now creates a start menu shortcut for you. -- http://mail.python.org/mailman/listinfo/python-list
read_table € symbol
Dear all,
I'm trying to read a txt file with read_table but in the file there are some
string that contain the € symbol and the procedure returns me an error.
I tried with encoding='utf-8' but the problem is still there:
pd.read_table('filename.txt', sep=';', encoding='utf-8')
Anyone can help me?
Many thanks in advance
Davide
--
https://mail.python.org/mailman/listinfo/python-list
Broadcasting TimeSeries
Hello, I opened my Python Shell and I wrote the following: >>> import numpy as np >>> import pandas as pd then I made a function >>> def afunc(aframe): return aframe - aframe.mean(axis=1) and I defined a DataFrame with time as index >>> A = >>> pd.DataFrame(np.random.randn(5,3),columns=['a','b','c'],index=pd.date_range(start='1984-12-20',periods=5)) >>> A a b c 1984-12-20 -0.257916 -0.137923 -0.669796 1984-12-21 -1.632874 -1.850365 1.571715 1984-12-22 1.185828 -0.149839 -1.565930 1984-12-23 -0.757311 0.034627 0.794608 1984-12-24 0.548785 -1.126786 -0.438457 now, if I call the function the following error is generated: >>> afunc(A) Traceback (most recent call last): File "", line 1, in afunc(A) File "", line 2, in afunc return aframe - aframe.mean(axis=1) File "C:\Python33\lib\site-packages\pandas\core\frame.py", line 217, in f return self._combine_series(other, na_op, fill_value, axis, level) File "C:\Python33\lib\site-packages\pandas\core\frame.py", line 3601, in _combine_series return self._combine_series_infer(other, func, fill_value) File "C:\Python33\lib\site-packages\pandas\core\frame.py", line 3619, in _combine_series_infer FutureWarning) File "C:\Python33\lib\idlelib\PyShell.py", line 60, in idle_showwarning file.write(warnings.formatwarning(message, category, filename, AttributeError: 'NoneType' object has no attribute 'write' then I recall the same function (without any change) and the function works! >>> afunc(A) a b c 1984-12-20 0.097295 0.217289 -0.314584 1984-12-21 -0.995699 -1.213190 2.208890 1984-12-22 1.362475 0.026808 -1.389283 1984-12-23 -0.781285 0.010652 0.770633 1984-12-24 0.887604 -0.787967 -0.099637 Why does this happen? Why I must call the function two times before it finally works? How can I overcome this problem? Many thanks in advance Davide -- https://mail.python.org/mailman/listinfo/python-list
statsmodels.api
Hi, I intalled an executable version of statsmodels library for Windows 32-bit. When I import it in my Python Shell no problem occurs buy when I write: import statsmodels.api as sm the following error arises: Traceback (most recent call last): File "", line 1, in import statsmodels.api File "C:\Python33\lib\site-packages\statsmodels\api.py", line 1, in from . import iolib, datasets, tools File "C:\Python33\lib\site-packages\statsmodels\iolib\__init__.py", line 1, in from .foreign import StataReader, genfromdta, savetxt File "C:\Python33\lib\site-packages\statsmodels\iolib\foreign.py", line 20, in import statsmodels.tools.data as data_util File "C:\Python33\lib\site-packages\statsmodels\tools\__init__.py", line 1, in from .tools import add_constant, categorical File "C:\Python33\lib\site-packages\statsmodels\tools\tools.py", line 8, in from scipy.interpolate import interp1d File "C:\Python33\lib\site-packages\scipy\interpolate\__init__.py", line 150, in from .interpolate import * File "C:\Python33\lib\site-packages\scipy\interpolate\interpolate.py", line 12, in import scipy.special as spec File "C:\Python33\lib\site-packages\scipy\special\__init__.py", line 529, in from ._ufuncs import * Why? Thanks for any help you will want to give me! Davide -- https://mail.python.org/mailman/listinfo/python-list
Re: statsmodels.api
Il giorno lunedì 16 settembre 2013 17:47:55 UTC+2, Ethan Furman ha scritto: > On 09/16/2013 08:37 AM, Davide Dalmasso wrote: > > > Hi, > > > > > > I intalled an executable version of statsmodels library for Windows 32-bit. > > > When I import it in my Python Shell no problem occurs buy when I write: > > > > > > import statsmodels.api as sm > > > > > > the following error arises: > > > > > > Traceback (most recent call last): > > >File "", line 1, in > > > import statsmodels.api > > >File "C:\Python33\lib\site-packages\statsmodels\api.py", line 1, in > > > > > from . import iolib, datasets, tools > > >File "C:\Python33\lib\site-packages\statsmodels\iolib\__init__.py", line > > 1, in > > > from .foreign import StataReader, genfromdta, savetxt > > >File "C:\Python33\lib\site-packages\statsmodels\iolib\foreign.py", line > > 20, in > > > import statsmodels.tools.data as data_util > > >File "C:\Python33\lib\site-packages\statsmodels\tools\__init__.py", line > > 1, in > > > from .tools import add_constant, categorical > > >File "C:\Python33\lib\site-packages\statsmodels\tools\tools.py", line 8, > > in > > > from scipy.interpolate import interp1d > > >File "C:\Python33\lib\site-packages\scipy\interpolate\__init__.py", line > > 150, in > > > from .interpolate import * > > >File "C:\Python33\lib\site-packages\scipy\interpolate\interpolate.py", > > line 12, in > > > import scipy.special as spec > > >File "C:\Python33\lib\site-packages\scipy\special\__init__.py", line > > 529, in > > > from ._ufuncs import * > > > > We'll need the rest of the traceback, as it will have the actual error. > > > > -- > > ~Ethan~ Python 3.3.2 (v3.3.2:d047928ae3f6, May 16 2013, 00:03:43) [MSC v.1600 32 bit (Intel)] on win32 Type "copyright", "credits" or "license()" for more information. >>> import statsmodels.api as sm Traceback (most recent call last): File "", line 1, in import statsmodels.api as sm File "C:\Python33\lib\site-packages\statsmodels\api.py", line 1, in from . import iolib, datasets, tools File "C:\Python33\lib\site-packages\statsmodels\iolib\__init__.py", line 1, in from .foreign import StataReader, genfromdta, savetxt File "C:\Python33\lib\site-packages\statsmodels\iolib\foreign.py", line 20, in import statsmodels.tools.data as data_util File "C:\Python33\lib\site-packages\statsmodels\tools\__init__.py", line 1, in from .tools import add_constant, categorical File "C:\Python33\lib\site-packages\statsmodels\tools\tools.py", line 8, in from scipy.interpolate import interp1d File "C:\Python33\lib\site-packages\scipy\interpolate\__init__.py", line 150, in from .interpolate import * File "C:\Python33\lib\site-packages\scipy\interpolate\interpolate.py", line 12, in import scipy.special as spec File "C:\Python33\lib\site-packages\scipy\special\__init__.py", line 529, in from ._ufuncs import * ImportError: DLL load failed: Impossibile trovare il modulo specificato. >>> -- https://mail.python.org/mailman/listinfo/python-list
Re: statsmodels.api
You are right... there is a problem with scipy intallation because this error arise... >>> from scipy.interpolate import interp1d Traceback (most recent call last): File "", line 1, in from scipy.interpolate import interp1d File "C:\Python33\lib\site-packages\scipy\interpolate\__init__.py", line 150, in from .interpolate import * File "C:\Python33\lib\site-packages\scipy\interpolate\interpolate.py", line 12, in import scipy.special as spec File "C:\Python33\lib\site-packages\scipy\special\__init__.py", line 529, in from ._ufuncs import * ImportError: DLL load failed: Impossibile trovare il modulo specificato. I tryed to re-install the scipy executable that I downloaded from http://www.lfd.uci.edu/~gohlke/pythonlibs/ but the problem persists -- https://mail.python.org/mailman/listinfo/python-list
Re: statsmodels.api
On Monday, 16 September 2013 17:37:58 UTC+2, Davide Dalmasso wrote: > Hi, > > > > I intalled an executable version of statsmodels library for Windows 32-bit. > > When I import it in my Python Shell no problem occurs buy when I write: > > > > import statsmodels.api as sm > > > > the following error arises: > > > > Traceback (most recent call last): > > File "", line 1, in > > import statsmodels.api > > File "C:\Python33\lib\site-packages\statsmodels\api.py", line 1, in > > from . import iolib, datasets, tools > > File "C:\Python33\lib\site-packages\statsmodels\iolib\__init__.py", line 1, > in > > from .foreign import StataReader, genfromdta, savetxt > > File "C:\Python33\lib\site-packages\statsmodels\iolib\foreign.py", line 20, > in > > import statsmodels.tools.data as data_util > > File "C:\Python33\lib\site-packages\statsmodels\tools\__init__.py", line 1, > in > > from .tools import add_constant, categorical > > File "C:\Python33\lib\site-packages\statsmodels\tools\tools.py", line 8, in > > > from scipy.interpolate import interp1d > > File "C:\Python33\lib\site-packages\scipy\interpolate\__init__.py", line > 150, in > > from .interpolate import * > > File "C:\Python33\lib\site-packages\scipy\interpolate\interpolate.py", line > 12, in > > import scipy.special as spec > > File "C:\Python33\lib\site-packages\scipy\special\__init__.py", line 529, > in > > from ._ufuncs import * > > > > Why? > > > > Thanks for any help you will want to give me! > > > > Davide -- https://mail.python.org/mailman/listinfo/python-list
Re: statsmodels.api
Oscar you are right! The problem was Numpy! I re-installed it using an executable that I downloaded from: http://www.lfd.uci.edu/~gohlke/pythonlibs/#numpy I don't remember if previously I installed it using another source. However the problem now is disappeared! Many thanks! Davide -- https://mail.python.org/mailman/listinfo/python-list
Finance: Mean-Variance Efficient Frontier - Portfolio Optimization - Markowitz
Hi, is there anyone that have some reliable tool, package or website that can help me to solve a financial portfolio optimization problem in Python? Many thanks in advance Davide Dalmasso -- https://mail.python.org/mailman/listinfo/python-list
