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Convert pandas dataframe to NumPy array
I am interested in knowing how to convert a pandas dataframe into a NumPy array.
15 Answers
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MVC Razor dynamic model, 'object' does not contain definition for 'PropertyName'
...d Ebbo has edited his post with this clarification:
Note (12/22/2011): now that MVC 3 has direct support for dynamic, the technique below is no longer necessary. This post is in fact what led to integrating the feature into MVC!
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How to do version numbers? [closed]
...nswer", I started working on the article again. PDF and LaTeX versions are now available, a complete rewrite including better language and explanatory graphics will follow as soon as I can find the time. Thank you for your votes!
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UnicodeDecodeError when redirecting to file
...character list is included in the Unicode standard; it covers most of the known characters.
On the other hand, computers do need to represent abstract characters in some way: for this, they use arrays of bytes (numbers between 0 and 255 included), because their memory comes in byte chunks. The nece...
How to programmatically take a screenshot on Android?
...e code (running in an Activity):
private void takeScreenshot() {
Date now = new Date();
android.text.format.DateFormat.format("yyyy-MM-dd_hh:mm:ss", now);
try {
// image naming and path to include sd card appending name you choose for file
String mPath = Environment.g...
How to make the first option of selected with jQuery
...he "selected" flag from any options that might have already been selected. Now the answer is correct :)
– jmort253
Dec 8 '11 at 21:29
20
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Is there a version of JavaScript's String.indexOf() that allows for regular expressions?
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UPDATE: Edited regexLastIndexOf() so that is seems to mimic lastIndexOf() now. Please let me know if it still fails and under what circumstances.
UPDATE: Passes all tests found on in comments on this page, and my own. Of course, that doesn't mean it's bulletproof. Any feedback appreciated.
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How do I set the time zone of MySQL?
... this answer.
To get the current timezone offset as TIME
SELECT TIMEDIFF(NOW(), UTC_TIMESTAMP);
It will return 02:00:00 if your timezone is +2:00.
To get the current UNIX timestamp:
SELECT UNIX_TIMESTAMP();
SELECT UNIX_TIMESTAMP(NOW());
To get the timestamp column as a UNIX timestamp
SELECT...
How do you run a single test/spec file in RSpec?
...troller_spec.rb \
SPEC_OPTS="-e \"should log in with cookie\""
Now figure out how to embed this into your editor.
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How can I make Jenkins CI with Git trigger on pushes to master?
...hese steps:
Go to your project's settings → Web hooks
Enter the "Build Now" URL from your Jenkins project as a Push Event URL:
http://server.com/jenkins/job/project_name/build?delay=0sec for example
Click Add Web Hook and then test hook
Then any time you commit to the repository, the web hook...