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R - Concatenate two dataframes?
...umn b to data frame b.
Results
> a <- data.frame(a=c(0,1,2), b=c(3,4,5), c=c(6,7,8))
> a
a b c
1 0 3 6
2 1 4 7
3 2 5 8
> b <- data.frame(a=c(9,10,11), c=c(12,13,14))
> b
a c
1 9 12
2 10 13
3 11 14
> b$b <- NA
> b
a c b
1 9 12 NA
2 10 13 NA
3 11 14 NA
> ne...
how to permit an array with strong parameters
...ses has_many :through associations which is not, as I remake it as a Rails 4 app, letting me save ids from the associated model in the Rails 4 version.
...
Convert HttpPostedFileBase to byte[]
...lying on all the data being available in a single go. If you're using .NET 4 this is simple:
MemoryStream target = new MemoryStream();
model.File.InputStream.CopyTo(target);
byte[] data = target.ToArray();
It's easy enough to write the equivalent of CopyTo in .NET 3.5 if you want. The important p...
Git: copy all files in a directory from another branch
...
answered Apr 19 '10 at 16:04
CB BaileyCB Bailey
610k9090 gold badges596596 silver badges628628 bronze badges
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Bypass confirmation prompt for pip uninstall
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zamir
1,41911 gold badge66 silver badges2222 bronze badges
answered Nov 5 '15 at 23:51
gbozeegbozee
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How do I specify multiple targets in my podfile for my Xcode project?
I'm using CocoaPods with my Xcode 4 project and I have three targets for my project (the default, one for building a lite version and one for building a demo version). All the targets use the same libraries, but CocoaPods is only adding the static library and search paths to the primary target. My p...
Can I assume (bool)true == (int)1 for any C++ compiler?
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4 Answers
4
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Reference list item by index within Django template?
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4 Answers
4
Active
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Android.app Fragments vs. android.support.v4.app using ViewPager?
... Looking into their code, I've noticed they utilize the android.support.v4.app library, which from my research is the only way to access the ViewPager class.
...
Calling constructor from other constructor in same class
...int b )
{
this.m_A = a;
this.m_B = b;
}
Source Courtesy of csharp411.com
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