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Pandas conditional creation of a series/dataframe column
...ect dtypes in columns, like in your example, list comprehensions typically outperform most other methods.
Example list comprehension:
df['color'] = ['red' if x == 'Z' else 'green' for x in df['Set']]
%timeit tests:
import pandas as pd
import numpy as np
df = pd.DataFrame({'Type':list('ABBC'), ...
How do I run a node.js app as a background service?
...
Check out this answer from SO - stackoverflow.com/questions/8825460/…
– NG.
Oct 3 '12 at 16:05
...
Get element inside element by class and ID - JavaScript
...g a library that has built-in CSS3 selector support rather than worrying about browser compatibility yourself (let someone else do all the work). If you want just a library to do that, then Sizzle will work great. In Sizzle, this would be be done like this:
Sizzle("#foo .bar")[0].innerHTML = "Goo...
Android: allow portrait and landscape for tablets, but force portrait on phone?
...creen size of the device
if ((getResources().getConfiguration().screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) == Configuration.SCREENLAYOUT_SIZE_LARGE) {
Toast.makeText(this, "Large screen",Toast.LENGTH_LONG).show();
}
else if ((getResources().getConfiguration().screenLay...
Type converting slices of interfaces
...implicitly convert T to interface{} . Is there something non-trivial about this conversion that I'm missing?
6 Answer...
URL rewriting with PHP
...
You can essentially do this 2 ways:
The .htaccess route with mod_rewrite
Add a file called .htaccess in your root folder, and add something like this:
RewriteEngine on
RewriteRule ^/?Some-text-goes-here/([0-9]+)$ /picture.php?id=$1
This will tell Apache to enable mod_rewr...
Android Endless List
...nd devices, since none of the visible/total count calculations are carried out during the scroll operations.
Let your ListFragment or ListActivity implement OnScrollListener
Add the following methods to that class:
@Override
public void onScroll(AbsListView view, int firstVisibleItem,
int...
How can I get selector from jQuery object
...$(this) ? There is a way to select an element by its selector, but what about getting the selector from element ?
19 Answe...
git log of a single revision
... answer is the best for simplicity. But if you don't want the diff in your output you can always do something like:
git log -1 -U c
That will give you the commit log, and then you'll have full control over all the git logging options for your automation purposes. In your instance you said you wan...
Download Github pull request as unified diff
... worth gold. (That blogposting too.) I wonder how anyone sane can work without that, and why it is not exposed in the crappy-enough-as-is Web UI.
– mirabilos
Sep 1 '13 at 19:43
8
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