python

问题 I am trying to apply a rolling function, with a 3 year window, on a pandas dataframe. import pandas as pd # Dummy data df = pd.DataFrame({'Product': ['A', 'A', 'A', 'A', 'B', 'B', 'B', 'B'], 'Year': [2015, 2016, 2017, 2018, 2015, 2016, 2017, 2018], 'IB': [2, 5, 8, 10, 7, 5, 10, 14], 'OB': [5, 8, 10, 12, 5, 10, 14, 20], 'Delta': [2, 2, 1, 3, -1, 3, 2, 4]}) # The function to be applied def get_ln_rate(ib, ob, delta): n_years = len(ib) return sum(delta)*np.log(ob[-1]/ib[0]) / (n_years * (ob[-1]

问题 I have very simple Python function that subtracts scalar value from pandas Series: def sub(x: pd.Series, a: int) -> pd.Series: return x - a It works as expected. I'm using type hints to enable type checker directly in my PyCharm IDE. The issue here is I get this warning message: Expected type 'Series', got 'int' instead As you can see in the image below: I understand that Python is dynamically typed language so in some cases type checking with type hints has its own limitations. But this

问题 Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 7 years ago . Improve this question I'm trying to get the caret position in Python. I tried using win32gui.GetCaretPos() but it always returns 0,0. Do you have any ideas how to make it work? Thanks Chris 回答1: If the caret is in a window created by another thread, you need to call AttachThreadInput.

问题 I'm using Selenium and Chromdriver which will load the site just fine including the Javascript loaded data. My problem is a normal Chrome browser will update over time when this data changes and the Chromedriver holds the first static data it was sent. I haven't had any better luck with PhantomJS or firefox as a webdriver. So is there anyway to use a normal Chrome browser? Or even IE? I know in theory I could have it load a Chrome browser and watch the network traffic for the data I'm looking

问题 I'm using Selenium and Chromdriver which will load the site just fine including the Javascript loaded data. My problem is a normal Chrome browser will update over time when this data changes and the Chromedriver holds the first static data it was sent. I haven't had any better luck with PhantomJS or firefox as a webdriver. So is there anyway to use a normal Chrome browser? Or even IE? I know in theory I could have it load a Chrome browser and watch the network traffic for the data I'm looking

问题 I'm using Selenium and Chromdriver which will load the site just fine including the Javascript loaded data. My problem is a normal Chrome browser will update over time when this data changes and the Chromedriver holds the first static data it was sent. I haven't had any better luck with PhantomJS or firefox as a webdriver. So is there anyway to use a normal Chrome browser? Or even IE? I know in theory I could have it load a Chrome browser and watch the network traffic for the data I'm looking

问题 I just installed tensorflow using the instructions for the virtualenv method. The installation process went smoothly, so I don't think there was any problem there. After installation I proceeded to try and import it to validate that everything is ok, and I got the following message: [1] 4492 illegal hardware instruction (core dumped) python This happened after I use the following command using th python interactive console: import tensorflow as tf I tried using the link with pip to reinstall

问题 I just installed tensorflow using the instructions for the virtualenv method. The installation process went smoothly, so I don't think there was any problem there. After installation I proceeded to try and import it to validate that everything is ok, and I got the following message: [1] 4492 illegal hardware instruction (core dumped) python This happened after I use the following command using th python interactive console: import tensorflow as tf I tried using the link with pip to reinstall

问题 I just installed tensorflow using the instructions for the virtualenv method. The installation process went smoothly, so I don't think there was any problem there. After installation I proceeded to try and import it to validate that everything is ok, and I got the following message: [1] 4492 illegal hardware instruction (core dumped) python This happened after I use the following command using th python interactive console: import tensorflow as tf I tried using the link with pip to reinstall

问题 I need to render at_risk numbers on a Kaplan Meier graph. The end result should be similar to this: The bit I am having trouble rendering is the No. of patients at risk at the bottom of the graph. The values displayed there, correspond to the values on the x-axis. So in essence, it's like a Y-axis rendered in parallel with the X. I have been trying to replicate multiple-axis found here (https://plot.ly/python/multiple-axes/) without success, and also tried having a subplot and hide everything