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Create an empty data.frame

I'm trying to initialize a data.frame without any rows. Basically, I want to specify the data types for each column and name them, but not have any rows created as a result. ...
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In Python, how to display current time in readable format

How can I display the current time as: 6 Answers 6 ...
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Difference between Activity and FragmentActivity

I was working on fragments and came across two things Activity and FragmentActivity which are used several times. I want to know that is there any difference between these two, because when I changed Activity with FragmentActivity , it had no effect on the app. ...
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Reading header data in Ruby on Rails

I am making an API where in the access token for Facebook login will be sent in through header data. 3 Answers ...
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Java naming convention for static final variables [duplicate]

there is a rule which says: 9 Answers 9 ...
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What is included in JCenter repository in Gradle?

From Gradle 1.7 there is new Public repository JCenter. 4 Answers 4 ...
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When should I use perror(“…”) and fprintf(stderr, “…”)?

Reading the man pages and some code did not really help me in understanding the difference between - or better, when I should use - perror("...") or fprintf(stderr, "...") . ...
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Adding git branch on the Bash command prompt

I tried adding the git branch I'm currently working on (checked-out) on the bash prompt without success.. ( while keeping my current path which shows the active directory/file intact) I have a .bashrc file on my home, but I also saw many people mentioning the .profile file.. ...
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How to get Top 5 records in SqLite?

I have tried this which did not work. 6 Answers 6 ...
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Parallel.ForEach() vs. foreach(IEnumerable.AsParallel())

Erg, I'm trying to find these two methods in the BCL using Reflector, but can't locate them. What's the difference between these two snippets? ...