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How to form tuple column from two columns in Pandas
...rtable with zip. It comes in handy when dealing with column data.
df['new_col'] = list(zip(df.lat, df.long))
It's less complicated and faster than using apply or map. Something like np.dstack is twice as fast as zip, but wouldn't give you tuples.
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How to Test a Concern in Rails
...t I have a Personable concern in my Rails 4 application which has a full_name method, how would I go about testing this using RSpec?
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How to use Swift @autoclosure
...answered Jun 8 '14 at 5:28
eddie_ceddie_c
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What is routes.IgnoreRoute(“{resource}.axd/{*pathInfo}”)
...lers.AssemblyResourceLoader" validate="True" />
<add verb="*" path="*_AppService.axd"
Ok, so what does that handler do?
The AssemblyResourceLoader knows how to look for embedded files within an assembly so it can serve it (send it to the client i.e. a browser). For example, in asp.net web ...
MongoDB - Update objects in a document's array (nested updating)
...reak it into two parts. First, increment any document that has "items.item_name" equal to "my_item_two". For this you'll have to use the positional "$" operator. Something like:
db.bar.update( {user_id : 123456 , "items.item_name" : "my_item_two" } ,
{$inc : {"items.$.price" : ...
Rails: Using build with a has_one association in rails
... later on create a profile for that user. I tried using build with a has_one association but that blew up. The only way I see this working is using has_many . The user is supposed to only have at most one profile .
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Reading file contents on the client-side in javascript in various browsers
...)
{
alert(content);
}
ReadFileAllBrowsers(document.getElementById("file_upload"), CallBackFunction);
//Tested in Mozilla Firefox browser, Chrome
function ReadFileAllBrowsers(FileElement, CallBackFunction)
{
try
{
var file = FileElement.files[0];
var contents_ = "";
if (file) {
...
Assign one struct to another in C
...ree() because they are automatic variables: en.wikipedia.org/wiki/Automatic_variable
– joshdoe
Jun 19 '12 at 16:32
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show 1 more comment
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How to define a circle shape in an Android XML drawable file?
...veral examples in the ApiDemos project:
/ApiDemos/res/drawable/
black_box.xml
shape_5.xml
etc
It will look something like this for a circle with a gradient fill:
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape...
Python strptime() and timezones?
...time module documentation says:
Return a datetime corresponding to date_string, parsed according to format. This is equivalent to datetime(*(time.strptime(date_string, format)[0:6])).
See that [0:6]? That gets you (year, month, day, hour, minute, second). Nothing else. No mention of timezones....