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Set value for particular cell in pandas DataFrame using index
...0), is far and away faster than the options I've suggested below. However, it has been slated for deprecation.
Going forward, the recommended method is .iat/.at.
Why df.xs('C')['x']=10 does not work:
df.xs('C') by default, returns a new dataframe with a copy of the data, so
df.xs('C')['x']=10...
Dynamic array in C#
...follow
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edited May 8 '15 at 23:16
John Saunders
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How do I view the SQLite database on an Android device? [duplicate]
I have a set of data in an SQLite database. I need to view the database on a device. How do I do that?
19 Answers
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Fastest way to determine if record exists
As the title suggests... I'm trying to figure out the fastest way with the least overhead to determine if a record exists in a table or not.
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Linking static libraries to other static libraries
...s (a_1-a_n). I'd like to package up that code in a static library and make it available to other people.
6 Answers
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BackgroundWorker vs background Thread
...form app. Currently I have a BackgroundWorker on a form that has an infinite (while(true)) loop. In this loop I use WaitHandle.WaitAny to keep the thread snoozing until something of interest happens. One of the event handles I wait on is a " StopThread " event so that I can break out of the lo...
What are the differences between the urllib, urllib2, urllib3 and requests module?
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I know it's been said already, but I'd highly recommend the requests Python package.
If you've used languages other than python, you're probably thinking urllib and urllib2 are easy to use, not much code, and highly capable, that's...
What does the line “#!/bin/sh” mean in a UNIX shell script?
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It's called a shebang, and tells the parent shell which interpreter should be used to execute the script.
e.g.
#!/usr/bin/perl <--perl script'
#!/usr/bin/php <-- php script
#!/bin/false <--- do-nothing script, be...
How do I rename an open file in Emacs?
Is there a way to rename an open file in Emacs? While I'm viewing it? Something like save-as, but the original one should go away.
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What is the difference between onPause() and onStop() of Android Activites?
... android doc here http://developer.android.com/reference/android/app/Activity.html ,
it said 'Activity comes into foreground' will call onPause() , and 'Activity is no longer visible' will call onStop() .
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