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Extracting specific columns from a data frame
I have an R data frame with 6 columns, and I want to create a new dataframe that only has three of the columns.
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How to remove “Server name” items from history of SQL Server Management Studio
When trying to connect to a server in Management Studio (specifically 2008), there is a field where you enter the Server name. That field also has a drop-down list where it shows a history of servers that you have attempted to connect to.
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Using ConfigurationManager to load config from an arbitrary location
I'm developing a data access component that will be used in a website that contains a mix of classic ASP and ASP.NET pages, and need a good way to manage its configuration settings.
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How do I enable MSDTC on SQL Server?
Is this even a valid question? I have a .NET Windows app that is using MSTDC and it is throwing an exception:
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How do I get a list of all the duplicate items using pandas in python?
...hat likely has some export issues. I would like to get a list of the duplicate items so I can manually compare them. When I try to use pandas duplicated method , it only returns the first duplicate. Is there a a way to get all of the duplicates and not just the first one?
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How to remove trailing whitespace of all files recursively?
How can you remove all of the trailing whitespace of an entire project? Starting at a root directory, and removing the trailing whitespace from all files in all folders.
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Conditionally Remove Dataframe Rows with R [duplicate]
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How do I restore a missing IIS Express SSL Certificate?
After setting up HTTPS in IIS Express, according to such articles as this and this , I am unable to actually load an IIS Express site using HTTPS. In Chrome , I am only getting:
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Get Slightly Lighter and Darker Color from UIColor
I was looking to be able to turn any UIColor into a gradient. The way I am intending to do this is by using Core Graphics to draw a gradient. What I am trying to do is to get a color, lets say:
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User recognition without cookies or local storage
I'm building an analytic tool and I can currently get the user's IP address, browser and operating system from their user agent.
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