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How to add an empty column to a dataframe?

What's the easiest way to add an empty column to a pandas DataFrame object? The best I've stumbled upon is something like ...
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Get free disk space

Given each of the inputs below, I'd like to get free space on that location. Something like 13 Answers ...
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Fitting empirical distribution to theoretical ones with Scipy (Python)?

INTRODUCTION : I have a list of more than 30,000 integer values ranging from 0 to 47, inclusive, e.g. [0,0,0,0,..,1,1,1,1,...,2,2,2,2,...,47,47,47,...] sampled from some continuous distribution. The values in the list are not necessarily in order, but order doesn't matter for this problem. ...
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How to determine if a number is odd in JavaScript

Can anyone point me to some code to determine if a number in JavaScript is even or odd? 27 Answers ...
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What is SYSNAME data type in SQL Server?

What is the SQL Server SYSNAME data type for? BOL says: 8 Answers 8 ...
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What is an .axd file?

What kind of purpose do .axd files serve? 3 Answers 3 ...
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Handling Touch Event in UILabel and hooking it up to an IBAction

Ok, so I have a UILabel created in interface builder that displays some some default text of "tap to begin". 4 Answers...
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Using {} in a case statement. Why?

What is the point with using { and } in a case statement? Normally, no matter how many lines are there in a case statement, all of the lines are executed. Is this just a rule regarding older/newer compilers or there is something behind that? ...
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How do I Sort a Multidimensional Array in PHP [duplicate]

I have CSV data loaded into a multidimensional array. In this way each "row" is a record and each "column" contains the same type of data. I am using the function below to load my CSV file. ...
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Printing tuple with string formatting in Python

So, i have this problem. I got tuple (1,2,3) which i should print with string formatting. eg. 14 Answers ...