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How to apply a function to two columns of Pandas dataframe
Suppose I have a df which has columns of 'ID', 'col_1', 'col_2' . And I define a function :
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Pros and cons of AppSettings vs applicationSettings (.NET app.config / Web.config)
When developing a .NET Windows Forms Application we have the choice between those App.config tags to store our configuration values. Which one is better?
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What does CultureInfo.InvariantCulture mean?
I have a string of text like so:
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How to prevent Browser cache for php site
I have a php site running in cloud server.When ever i add new files css, js or images the browser is loading the same old js, css and image files stored in cache.
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What are the big improvements between guava and apache equivalent libraries?
We currently use apache collections, string utils, etc. I need to decide if we should switch from the apache foundations implementation.
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How to check whether a pandas DataFrame is empty?
How to check whether a pandas DataFrame is empty? In my case I want to print some message in terminal if the DataFrame is empty.
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What is a Portable Class Library?
On MSDN I noticed a section about a Portable Class Library , under Version Information.
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How to create a unique index on a NULL column?
I am using SQL Server 2005. I want to constrain the values in a column to be unique, while allowing NULLS.
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JavaScript: Class.method vs. Class.prototype.method
What is the difference between the following two declarations?
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“Notice: Undefined variable”, “Notice: Undefined index”, and “Notice: Undefined offset” using PHP
I'm running a PHP script and continue to receive errors like:
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