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How to select rows from a DataFrame based on column values?
...have multiple values you want to include, put them in a
list (or more generally, any iterable) and use isin:
print(df.loc[df['B'].isin(['one','three'])])
yields
A B C D
0 foo one 0 0
1 bar one 1 2
3 bar three 3 6
6 foo one 6 12
7 foo three 7 14
Note,...
How can you disable Git integration in Visual Studio 2013 permanently?
...isable the source control plugin going to:
Tools / Options
Check "Show all settings"
Source Control / Plug-in Selection
Set "Current source control plug-in" to "None"
Then, as Ade Miller says: Restart Visual Studio.
My Visual Studio was working really slow since the git plugging was enabled ...
Swap key with value JSON
...nfirm, is it? Performance good? Semantic is perfect: we can see that is really a simple "map and swap" solution.
– Peter Krauss
Jan 3 '19 at 17:41
1
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select and update database record with a single queryset
...
@learning well dude, it all depends on your scenario. The update method is great for mass updates, but it should set off a warning in your head when you use it that you need to review any signals attached to that object that might also need to be m...
Remove spaces from std::string in C++
... preferred way to remove spaces from a string in C++? I could loop through all the characters and build a new string, but is there a better way?
...
How to log PostgreSQL queries?
How to enable logging of all SQL executed by PostgreSQL 8.3?
10 Answers
10
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How to create local notifications?
...thorizationOptionAlert)
completionHandler:^(BOOL granted, NSError * _Nullable error) {
if (!error) {
NSLog(@"request authorization succeeded!");
[self showAlert];
}
}];
-(void)showAlert {
UIAlertController *objAlertControlle...
MFC Grid control 2.27 - C/C++ - 清泛网 - 专注IT技能提升
...ch and useable as something of this form can be. Dozens of developers from all over the world have contributed fixes, improvements and suggestions over the 4 years that the grid has been growing, and there is still no end in sight. Most of the fixes have been sent in by readers so I'm trusting that ...
MFC Grid control 2.27 - C/C++ - 清泛网 - 专注IT技能提升
...ch and useable as something of this form can be. Dozens of developers from all over the world have contributed fixes, improvements and suggestions over the 4 years that the grid has been growing, and there is still no end in sight. Most of the fixes have been sent in by readers so I'm trusting that ...
MFC Grid control 2.27 - C/C++ - 清泛网 - 专注IT技能提升
...ch and useable as something of this form can be. Dozens of developers from all over the world have contributed fixes, improvements and suggestions over the 4 years that the grid has been growing, and there is still no end in sight. Most of the fixes have been sent in by readers so I'm trusting that ...