大约有 40,000 项符合查询结果(耗时:0.0285秒) [XML]
Convert unix time to readable date in pandas dataframe
					I have a dataframe with unix times and prices in it. I want to convert the index column so that it shows in human readable dates. 
                    
                    
                        
                            
                                
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							What's a redirect URI? how does it apply to iOS app for OAuth2.0?
					Beginner programmer here, please pardon ignorance & explanations will be really nice :)
                    
                    
                        
                            
                                
                                        4 Answers
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							How to do a less than or equal to filter in Django queryset?
					I am attempting to filter users by a custom field in each users profile called profile. This field is called level and is an integer between 0-3.
                    
                    
                        
                            
                                
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							Unittest setUp/tearDown for several tests
					Is there a function that is fired at the beginning/end of a scenario of tests? The functions setUp and tearDown are fired before/after every single test.
                    
                    
                        
                            
                                
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							Get all git commits since last tag
					When I'm going to tag a commit, I need to know what changed since the last tagged commit. Eg:
                    
                    
                        
                            
                                
                                        2 Answers
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							dplyr: “Error in n(): function should not be called directly”
					I am attempting to reproduce one of the examples in the dplyr package but am getting this error message. I am expecting to see a new column n produced with the frequency of each combination.  What am I missing?  I triple checked that the package is loaded.
                    
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							Subscripts in plots in R
					I can't find a way how to write subscripts in the title or the subtitle in R.
How can I write v 1,2 with 1,2 as subscripts?
                    
                    
                        
                            
                                
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							How to get min/max of two integers in Postgres/SQL?
					...(or minimum) of two integers in Postgres/SQL? One of the integers is not a column value.
                    
                    
                        
                            
                                
                                        2 Answers
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							seek() function?
					Please excuse my confusion here but I have read the documentation regarding the seek() function in python (after having to use it) and although it helped me I am still a bit confused on the actual meaning of what it does, any explanations are much appreciated, thank you.
                    
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							Does Qt support virtual pure slots?
					My GUI project in  Qt  has a lot of "configuration pages" classes which all inherit directly from  QWidget .
                    
                    
                        
                            
                                
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