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Unique combination of all elements from two (or more) vectors
...
this maybe what you are after
> expand.grid(a,b)
Var1 Var2
1 ABC 2012-05-01
2 DEF 2012-05-01
3 GHI 2012-05-01
4 ABC 2012-05-02
5 DEF 2012-05-02
6 GHI 2012-05-02
7 ABC 2012-05-03
8 DEF 2012-05-03
9 GHI 2012-05-03
10 ABC 2012-05-04
11 DEF ...
Xcode 4 - detach the console/log window
... (drag it off the tab bar into its own window by just letting it drop outside the current window). Now reform it to your hearts content; it will stay that way. Also don't forget the little controls at the top right of the console window that slide the local variable display out of the way so you ca...
Getting vertical gridlines to appear in line plot in matplotlib
I want to get both horizontal and vertical grid lines on my plot but only the horizontal grid lines are appearing by default. I am using a pandas.DataFrame from an sql query in python to generate a line plot with dates on the x-axis. I'm not sure why they do not appear on the dates and I have trie...
Does a valid XML file require an XML declaration?
...on doesn't work when it encounters 8-bit encodings that use characters outside the US-ASCII range (e.g. ISO 8859-1) -- avoid creating these if you can.
The standalone indicates whether the XML document can be correctly processed without the DTD or not. People rarely use it. These days, it is a bad ...
Hide files with certain extension in Sublime Text Editor?
is it possible to hide all the files with certain extension from the sidebar (lateral nav bar) in Sublime Text Editor 3?
2 ...
C# nullable string error
...value type. String is a reference type.
string s = null;
is a very valid statement and there is not need to make it nullable.
private string typeOfContract
{
get { return ViewState["typeOfContract"] as string; }
set { ViewState["typeOfContract"] = value; }
}
should work b...
What is the difference between Int and Integer?
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No, you're right, this is GHC specific. That said, 1. GHC is what most people use, 2. This is the most intelligent way I can think of to implement such a data type.
– Nate Symer
Apr 9 '16 at 16:48
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Running python script inside ipython
Is it possible to run a python script (not module) from inside ipython without indicating its path? I tried to set PYTHONPATH but it seems to work only for modules.
I would like to execute
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JRuby on Rails vs. Ruby on Rails, what's difference?
...ess, while in MRI there's the GIL (even with 1.9's native threads) that avoids executing Ruby code in parallel.
For an application developer this is the first thing to keep in mind while considering JRuby, as it really shines with config.threadsafe! but requires you to make sure your code (and your...
Do I need all three constructors for an Android custom view?
...ontext, AttributeSet attrs), otherwise you will get an Exception when Android tries to inflate your View.
If you add your View from xml and also specify the android:style attribute like :
<com.mypack.MyView
style="@styles/MyCustomStyle"
...
/>
the 2nd constructor will al...