I’m trying to load a sklearn.dataset, and missing a column, according to the keys (target_names, target & DESCR). I have tried various methods to include the last column, but with errors. import numpy as np import pandas as pd from sklearn.datasets import load_breast_cancer cancer = load_breast_cancer() print cancer.keys() the keys are [‘target_names’, ‘data’, ‘target’, ‘DESCR’, … Read more
I used pyenv, pyenv-virtualenv for managing python virtual environment. I have a project working in Python 3.4 virtual environment. So all installed packages(pandas, numpy etc) are not newest version. What I want to do is to upgrade Python version from 3.4 to 3.6 as well as upgrade other package version to higher one. How can … Read more
I have sets of values that I want to apply as parameters to a function: params = { ‘a’: [1, 2, 3], ‘b’: [5, 6, 7], ‘x’: [None, ‘eleven’, ‘f’], # et cetera } I want to run myfunc() with all possible combinations, so myfunc(a=1, b=5, x=None …), myfunc(a=2, b=5, x=None …) … myfunc(a=3, b=7, … Read more
This question already has answers here: Why do I need to decorate connected slots with pyqtSlot? (2 answers) Closed 4 years ago. I just read a tutorial about pyqt5 button from here. And the code is as below. There is a question about button.clicked.connect(self.on_click) and @pyqtSlot(). If I delete @pyqtSlot() from the code, it still … Read more
I need to access frames from video by the frame index. So far I used code like this: video = cv2.VideoCapture(video_path) status, frame = video.read() The code reads the first frame. If I use the code repeatedly I will get next frames. But how I can access directly any frame by its index? In other … Read more
Description of the problem Taxonomy is the science of defining and naming groups of biological organisms on the basis of shared characteristics. Organisms are grouped together into taxa (singular: taxon) and these groups are given a taxonomic rank. The principal ranks in modern use are domain, kingdom, phylum, class, order, family, genus and species. More … Read more
Let say, I have an array with x.shape = (10,1024) when I try to print x[0].shape x[0].shape it prints 1024 and when I print x.shape[0] x.shape[0] it prints 10 I know it’s a silly question, and maybe there is another question like this, but can someone explain it to me ? Answer x is a … Read more
I have two dataframes looking like df1: ID A B C D 0 ‘ID1’ 0.5 2.1 3.5 6.6 1 ‘ID2’ 1.2 5.5 4.3 2.2 2 ‘ID1’ 0.7 1.2 5.6 6.0 3 ‘ID3’ 1.1 7.2 10. 3.2 df2: ID A B C D 0 ‘ID1’ 1.0 2.0 3.3 4.4 1 ‘ID2’ 1.5 5.0 4.0 2.2 2 … Read more
I’m trying to automate some actions in a browser or a word processor with pyautogui module for Python 3 (Windows 10). There is a highlighted text in a browser. text the following script should print the highlighted text import pyautogui as pya # double clicks on a position of the cursor pya.doubleClick(pya.position()) list = [] … Read more
Does f.seek(500000,0) go through all the first 499999 characters of the file before getting to the 500000th? In other words, is f.seek(n,0) of order O(n) or O(1)? Answer You need to be a bit more specific on what type of object f is. If f is a normal io module object for a file stored … Read more
