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Check if a value exists in pandas dataframe index
...t the most efficient way to solve the problem, but I (1) like the way this reads and (2) you can easily subset where df1 index exists in df2:
df3 = df1[df1.index.isin(df2.index)]
or where df1 index does not exist in df2...
df3 = df1[~df1.index.isin(df2.index)]
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Android NDK C++ JNI (no implementation found for native…)
...sage just to verify that the lib is getting pulled in successfully.
You already dodged the most common problem -- forgetting to use extern "C" -- so it's either the above or some slight misspelling. What does the Java declaration look like?
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Disable soft keyboard on NumberPicker
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After reading through the com/android/internal/widget/NumberPicker.java source code i got to the following solution:
// Hide soft keyboard on NumberPickers by overwriting the OnFocusChangeListener
OnFocusChangeListener fcl = new O...
When is -XAllowAmbiguousTypes appropriate?
... uses our newly-disambiguated fi to disambiguate sup (and sig, which was already non-ambiguous). So that explains why sugarSym doesn't require the AllowAmbiguousTypes extension.
Let's now look at sugar. The first thing I notice is that the compiler is not complaining about an ambiguous type, but ra...
What is the use of GO in SQL Server Management Studio & Transact SQL?
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After reading the answer of @tvanfosson: Is it really interchangable with semicolon?
– WoIIe
Aug 23 '19 at 8:20
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Change Image of ImageView programmatically in Android
...d:
qImageView.setBackgroundResource(R.drawable.thumbs_down);
Here's a thread that talks about the differences between the two methods.
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Defeating a Poker Bot
...ill certainly make it harder for bots to win at the lower levels. We've already seen a slight shift with the release of PKR, 3D and a more interactive, less hands per hour version of the other sites where multitabling is quite tricky to accomplish for a player.
The problem also suffers from the na...
How to create Windows EventLog source from command line?
...event type.
I think this utility is included only from XP onwards.
Further reading
Windows IT Pro: JSI Tip 5487. Windows XP includes the EventCreate utility for creating custom events.
Type eventcreate /? in CMD prompt
Microsoft TechNet: Windows Command-Line Reference: Eventcreate
SS64: Windows ...
Meaning of tilde in Linux bash (not home directory)
...ork by simply returning the contents of the shell variable $PWD which is already defined as you traverse the file system.
– SDsolar
Jul 31 '17 at 2:02
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Operational Transformation library?
...ich is Differential Synchronization, to understand the differences you can read the Neil Fraser document of DS: neil.fraser.name/writing/sync (OT is referenced in this document as Event passing). They are two very different methods.
– Benja
Feb 6 '12 at 12:59
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