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Run an OLS regression with Pandas Data Frame
					I have a  pandas  data frame and I would like to able to predict the values of column A from the values in columns B and C. Here is a toy example:
                    
                    
                        
                            
                                
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							Warning: Found conflicts between different versions of the same dependent assembly
					...r simple method is to set Build
output verbosity (Tools, Options, Projects and Solutions, Build and
Run, MSBuild project build output verbosity, Detailed) and after
building, search the output window for the warning, and look at the
text just above it.  (Hat tip to pauloya who suggested this in the
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							Could not load file or assembly Microsoft.SqlServer.management.sdk.sfc version 11.0.0.0
					I have installed MS SQL Server 2008 R2 and when I try to update model from database under EDMX file I am facing that error.
                    
                    
                        
                            
                                
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							Detect URLs in text with JavaScript
					...ou need a good regex that matches urls. This is hard to do. See here, here and here:
  ...almost anything is a valid URL.  There
  are some punctuation rules for
  splitting it up.  Absent any
  punctuation, you still have a valid
  URL.
  
  Check the RFC carefully and see if you
  can construct ...				
				
				
							How to validate IP address in Python? [duplicate]
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                Hmm, seems to accept things like "4" and "192.168" and silently pads the rest with zeros.  Technically valid, I'm sure, but not quite what I expected.
                
– krupan
                Nov 25 '08 at 23:58
            
        
    
    
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							What is the most pythonic way to check if an object is a number?
					...ts rather than what it is, perform your operations as if you have a number and use exceptions to tell you otherwise.
    
    
        
            
            
                
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							Converting RGB to grayscale/intensity
					... from RGB to grayscale, it is said that specific weights to channels R, G, and B ought to be applied. These weights are: 0.2989, 0.5870, 0.1140.
                    
                    
                        
                            
                                
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							Find row where values for column is maximal in a pandas DataFrame
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Use the pandas idxmax function. It's straightforward:
>>> import pandas
>>> import numpy as np
>>> df = pandas.DataFrame(np.random.randn(5,3),columns=['A','B','C'])
>>> df
          A         B    ...				
				
				
							HSL to RGB color conversion
					...(which he attributes to a now defunct mjijackson.com, but is archived here and the original author has a gist - thanks to user2441511). 
The code is re-posted below:
HSL to RGB:
/**
 * Converts an HSL color value to RGB. Conversion formula
 * adapted from http://en.wikipedia.org/wiki/HSL_color_sp...				
				
				
							What are differences between AssemblyVersion, AssemblyFileVersion and AssemblyInformationalVersion?
					...sion attributes. What are differences? Is it ok if I use  AssemblyVersion  and ignore the rest?
                    
                    
                        
                            
                                
                                        7 Answers
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