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How to take column-slices of dataframe in pandas
...tation that Python lists do for both row and columns. Slice notation being start:stop:step
# slice from 'foo' to 'cat' by every 2nd column
df.loc[:, 'foo':'cat':2]
# foo quz cat
# slice from the beginning to 'bar'
df.loc[:, :'bar']
# foo bar
# slice from 'quz' to the end by 3
df.loc[:, 'quz'::3]
...
'sudo gem install' or 'gem install' and gem locations
... using sudo when installing gems.
Instead I recommend you install RVM and start a happy life with portable gem homes and different version of Ruby all living under one roof.
For the uninitiated, from the documentation:
RVM is a command line tool which allows us to easily install, manage and wo...
Select between two dates with Django
..._range operator:
...filter(current_issue__isnull=True, created_at__range=(start_date, end_date))
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Add and Remove Views in Android Dynamically?
... @Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before,
int count) {
}
});
// Inflate at the end of...
Difficulty with ng-model, ng-repeat, and inputs
... => name == 'Samf', names == ['Sam', 'Harry', 'Sally'];
$digest loop is started;
ngRepeat replaces model value from item scope ('Samf') by value from unchanged names array ('Sam');
ngModelController rerenders input with actual model value ('Sam').
How your example "Indexing into the array" work...
How do you use bcrypt for hashing passwords in PHP?
...
Please note that this answer, while good, is starting to show its age. This code (like any PHP implementation relying on crypt()) is subject to a security vulnerability pre-5.3.7, and is (very slightly) inefficient post-5.3.7 - details of the relevant issue can be found...
Converting JSON data to Java object
...ou want to do anything other than simple objects, you could easily need to start building your own serializers (which isn't that hard).
Also, if you have an array of Objects, and you deserialize some json into that array of Objects, the true types are LOST! The full objects won't even be copied! Us...
Open Cygwin at a specific folder
...install Cygwin (or if you’ve already installed it, download it again and start setup again to run an update), make sure that you select the chere package under the "Shells" category.
After Cygwin is launched, open up a Cygwin terminal (as an administrator) and type the command: chere -i -t mintty...
What is the easiest way to parse an INI file in Java?
...r dependency to my applications (that can blow out of proportions when you start to add in third party APIs for even the simplest tasks). But I can't ignore this kind of simplicity.
– Gimby
Jan 8 '13 at 10:42
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Why should I use core.autocrlf=true in Git?
...le.
Example:
*.vcproj text eol=crlf
*.sh text eol=lf
Note: starting git 2.8 (March 2016), merge markers will no longer introduce mixed line ending (LF) in a CRLF file.
See "Make Git use CRLF on its “<<<<<<< HEAD” merge lines"
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