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Conditionally Remove Dataframe Rows with R [duplicate]

... NA's killed my two hours :D Note that it will also select NA's – Ioane Sharvadze Feb 24 '17 at 20:18 add a comment  |  ...
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argparse: identify which subparser was used [duplicate]

...l "only contain attributes for the main parser and the sub parser that was selected". Unfortunately this may not be enough information to determine which sub parser was used. The documentation recommends using the set_defaults(...) method on the sub parser to solve this problem. For example, I've a...
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Chrome >=24 - how to dock devtools to the right?

...the option. Why not side-by-side like: [dock/undoc][bottom/right][console][select]? – Byran Zaugg Mar 22 '13 at 21:46 2 ...
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Click Event on UIImageView programmatically in ios

...r *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapDetected)]; singleTap.numberOfTapsRequired = 1; [preArrowImage setUserInteractionEnabled:YES]; [preArrowImage addGestureRecognizer:singleTap]; -(void)tapDetected{ NSLog(@"single Tap on imageview"); } SWIF...
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doesn't inherit the font from

...does not inherit by default but you can set it to inherit with css input, select, textarea, button{font-family:inherit;} demo: http://jsfiddle.net/gaby/pEedc/1/ share | improve this answer ...
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C#: how to get first char of a string?

... Select the oldest tab to see that it as Matthew – johnc Oct 7 '10 at 5:10 11 ...
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Changing java platform on which netbeans runs

...n project and choosing Properties->Sources and set Source/Binary format select JDK7 among options. – Arthur Kushman Feb 8 '14 at 20:39 ...
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How can I get a specific number child using CSS?

... Don't forget that this works only with CSS 3 selectors (in other words, not in versions of IE prior to 9). – zneak Apr 14 '11 at 14:31 1 ...
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What is 'Pattern Matching' in functional languages?

...s similar to dynamic message dispatch) but I can't see how at run-time you select a branch without a type test. – David Moles Feb 17 '16 at 23:42  |  ...
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How to prepare a Unity project for git? [duplicate]

... Take a look at the selected answer above, the step "Enable External option in Unity → Preferences → Packages → Repository" is not necessary on Unity 4.5+ – German Sep 1 '14 at 18:46 ...