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Can you require two form fields to match with HTML5?
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edited Aug 10 '15 at 11:40
Der Hochstapler
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The cause of “bad magic number” error when loading a workspace and how to avoid it?
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Laurenz Albe
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answered Feb 2 '14 at 0:57
Chris SHChris SH...
How to use glyphicons in bootstrap 3.0
...dy used glyphicons in bootstrap 2.3 but now I have upgraded to bootstrap 3.0. Now, I am unable to use the icon property.
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Count number of occurences for each unique value
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edited Sep 26 '15 at 0:37
Gregor Thomas
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What is the difference in maven between dependency and plugin tags in pom xml?
... this SO question describes the difference: stackoverflow.com/questions/16205778/…
– dev_feed
Jun 30 '15 at 17:34
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What does threadsafe mean?
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answered Jan 9 '10 at 15:51
Gregory PakoszGregory Pakosz
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Subset of rows containing NA (missing) values in a chosen column of a data frame
....na() instead. This should do it:
new_DF <- DF[rowSums(is.na(DF)) > 0,]
or in case you want to check a particular column, you can also use
new_DF <- DF[is.na(DF$Var),]
In case you have NA character values, first run
Df[Df=='NA'] <- NA
to replace them with missing values.
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Any decent text diff/merge engine for .NET? [closed]
...onent that uses Google's Diff/Patch/Match. It works from .NET.
Update, 2010 Oct 17: The Google Diff/Patch/Merge code has been ported to C#. The COM component still works, but if you're coming from .NET, you'll wanna use the .NET port directly.
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Lists: Count vs Count() [duplicate]
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Count() is an extension method introduced by LINQ while the Count property is part of the List i...
How to view method information in Android Studio?
...very time you select a method with your mouse though.
Android Studio 1.0: You have to hold CTRL if you want to get hold of documentation window for e.g. scrolling documentation otherwise as you move your mouse away from method documentation window will disappear.
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