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what is the most efficient way of counting occurrences in pandas?
I have a large (about 12M rows) dataframe df with say:
3 Answers
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JSP : JSTL's tag
Writing a JSP page, what exactly does the <c:out> do? I've noticed that the following both has the same result:
5 A...
How do I reset the scale/zoom of a web app on an orientation change on the iPhone?
When I start my app in portrait mode, it works fine. Then I rotate into landscape and it's scaled up. To get it to scale correctly for the landscape mode I have to double tap on something twice, first to zoom all the way in (the normal double tap behavior) and again to zoom all the way out (again, ...
Why is an MD5 hash created by Python different from one created using echo and md5sum in the shell?
A Python MD5 hash is different than the one created by the md5sum command on the shell. Why?
1 Answer
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CSS image resize percentage of itself?
I am trying to resize an img with a percentage of itself. For example, I just want to shrink the image by half by resizing it to 50%. But applying width: 50%; will resize the image to be 50% of the container element (the parent element which maybe the <body> for example).
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What is the difference between git am and git apply?
Both git am and git apply can be used to apply patches. I fail to see the difference. I see a difference now: git am automatically commits whereas git apply only touches the files but doesn't create a commit. Is that the only difference?
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Trying to start a service on boot on Android
...thing up into one complete answer.
You need the following in your AndroidManifest.xml file:
In your <manifest> element:
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
In your <application> element (be sure to use a fully-qualified [or relative] cl...
Fastest Way of Inserting in Entity Framework
...wered Aug 12 '12 at 15:52
arkhivaniaarkhivania
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How can I launch multiple instances of MonoDevelop on the Mac?
...it works. I've thought of a few ways of automating it and conveying more meaningful information than just -2, -3, etc. in the filename for command-tabbing through apps, but I haven't hit the Need > Laziness threshold yet that prompts me to build my tools :)
– Rory Blyth
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Friend declaration in C++ - difference between public and private
...d declaration appears.
As such access specifiers have no effect on the meaning of friend declarations (they can appear in private: or in public: sections, with no difference).
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