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How to select rows from a DataFrame based on column values?
...sitional indexing (df.iloc[...])
Label indexing (df.xs(...))
df.query(...) API
Below I show you examples of each, with advice when to use certain techniques. Assume our criterion is column 'A' == 'foo'
(Note on performance: For each base type, we can keep things simple by using the pandas API or ...
Is it possible to set a custom font for entire of application?
...ypeface">monospace</item>
</style>
</resources>
API 21 Android 5.0
I've investigated the reports in the comments that it doesn't work and it appears to be incompatible with the theme android:Theme.Material.Light.
If that theme is not important to you, use an older theme,...
window.close and self.close do not close the window in Chrome
...nkey and Tampermonkey could reasonably provide this functionality in their API (essentially packaging the extension work for you).
Consider making a feature request.
The hacky workarounds:
Chrome is currently was vulnerable to the "self redirection" exploit. So code like this used to work in ...
What is the Java equivalent of PHP var_dump?
...
commons.apache.org/lang/apidocs/org/apache/commons/lang/builder/…, this (maybe?): commons.apache.org/lang/api-2.5/org/apache/commons/lang/builder/…
– Dimitrios Mistriotis
Aug 19 '12 at 12:52
...
jQuery : eq() vs get()
...uery element. Since DOM elements have no method fadeIn() it fails.
http://api.jquery.com/get/
Description: Retrieve the DOM elements matched by the jQuery object.
http://api.jquery.com/eq-selector/
Description: Select the element at index n within the matched set.
...
How to get JS variable to retain value after page refresh? [duplicate]
...es:
Browser Storage - https://developer.mozilla.org/en-US/docs/Web/Guide/API/DOM/Storage
localStorage - https://developer.mozilla.org/en-US/docs/DOM/Storage#localStorage
JSON - https://developer.mozilla.org/en-US/docs/JSON
Browser Storage compatibility - http://caniuse.com/namevalue-storage
Storin...
Refresh Fragment at reload
...ched from its activity and then attached. All can be done using the fluent api in one line:
getFragmentManager().beginTransaction().detach(this).attach(this).commit();
Update:
This is to incorporate the changes made to API 26 and above:
FragmentTransaction transaction = mActivity.getFragmentMana...
Is there a way to check if a file is in use?
...
The key thing to understand here is that this API is simply using the windows API to get a file handle. As such they need to translate the error code received from the C API and wrap it to an exception to throw. We have exception handling in .Net so why not use it. Th...
Logger slf4j advantages of formatting with {} instead of string concatenation
...e vast majority of logging statements have 2 or fewer parameters, so SLF4J API up to version 1.6 covers (only) the majority of use cases. The API designers have provided overloaded methods with varargs parameters since API version 1.7.
For those cases where you need more than 2 and you're stuck wi...
Rails: How does the respond_to block work?
...xecutes your block, passing a Responder into the format argument.
http://api.rubyonrails.org/v4.1/classes/ActionController/Responder.html
The Responder does NOT contain a method for .html or .json, but we call these methods anyways! This part threw me for a loop.
Ruby has a feature called method...