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Extracting specific columns from a data frame
... There is an issue with this syntax because if we extract only one column R, returns a vector instead of a dataframe and this could be unwanted: > df[,c("A")] [1] 1. Using subset doesn't have this disadvantage.
– David Dorchies
Jul 27 '16 at 13:4...
'heroku' does not appear to be a git repository
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This is the solution if you cloned the repo.
– JGallardo
Sep 24 '13 at 6:01
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What is cardinality in MySQL?
...f that column will tell you how many rows that table contains, as there is one unique ID for each row in the table.
You don't have to perform a "COUNT(*)" on that table to find out how many rows it has, simply look at the cardinality.
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When to use transclude 'true' and transclude 'element' in Angular?
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How would one unit test a directive with transclude equal to 'element'? I'm currently struggling with that problem. I can't seem to access the element after it's been transcluded.
– Chester Rivas
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Controlling mouse with Python
How does one control the mouse cursor in Python, i.e. move it to certain position and click, under Windows?
14 Answers
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How to change the timeout on a .NET WebClient object
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@webwires One should use .TotalMilliseconds and not .Milliseconds!
– Alexander Galkin
Aug 4 '14 at 21:09
86
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Remove stubborn underline from link
...ut the blue underline is stubbornly persisting. I tried text-decoration: none; and text-decoration: none !important; in the CSS to remove the link underline. Neither worked.
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Set the layout weight of a TextView programmatically
...he different LayoutParams are not interchangeable and if you use the wrong one then nothing seems to happen. The text view's parent is a table row, hence:
http://developer.android.com/reference/android/widget/TableRow.LayoutParams.html
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How to put a new line into a wpf TextBlock control?
...reserve" > once upon a time ...
this line will be below the first one < /SomeObject>
Or if you prefer :
<SomeObject xml:space="preserve" /> once upon a time... &#10; this line below < / SomeObject>
watch out : if you both use &10 AND you go to the next line ...
Bad class file magic or version
...y know that question has been already asked very often and answers, but no one of the answers i found fixed my problem.
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