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How to deal with “data of class uneval” error from ggplot2?
While trying to overlay a new line to a existing ggplot I am getting the following error:
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Drop a temporary table if it exists
I have two lines of code in SQL that create two tables on the fly, i need to do something like
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Nullable vs. int? - Is there any difference?
Apparently Nullable<int> and int? are equivalent in value. Are there any reasons to choose one over the other?
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C# - Selectively suppress custom Obsolete warnings
I'm using the Obsolete attribute (as just suggested by fellow programmers) to show a warning if a certain method is used.
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What does the 'Z' mean in Unix timestamp '120314170138Z'?
I have an X.509 certificate which has the following 2 timestamps:
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Why isn't `int pow(int base, int exponent)` in the standard C++ libraries?
I feel like I must just be unable to find it. Is there any reason that the C++ pow function does not implement the "power" function for anything except float s and double s?
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How to run multiple DOS commands in parallel?
How to run multiple dos commands?
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How to cherry pick from 1 branch to another
I have 2 branches, master and dev .
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What is the $? (dollar question mark) variable in shell scripting? [duplicate]
I'm trying to learn shell scripting, and I need to understand someone else's code. What is the $? variable hold? I can't Google search the answer because they block punctuation characters.
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Clicking the text to select corresponding radio button
I'm creating a quiz web application using PHP. Each question is comprised of a separate <label> and has 4 possible choices, using radio buttons to allow the user to select his/her answer. The current HTML for a single question looks like:
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