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Adding a column to a data.frame
...1, 1 + cumsum(nonpos))
> classes
[1] 1 1 1 1 2 2 2 2 2 2 2 3 3 3 3
Now, we can attach it back onto our data frame with cbind (by using the class= syntax, we can give the column the class heading):
> data_w_classes <- cbind(data, class=classes)
And data_w_classes now contains the re...
window.onload vs document.onload
... including its content (images, CSS, scripts, etc.).
In some browsers it now takes over the role of document.onload and fires when the DOM is ready as well.
document.onload
It is called when the DOM is ready which can be prior to images and other external content is loaded.
How well are they ...
Keep ignored files out of git status
...her of the above commands worked for me. In both cases git says it has no knowledge of the files in question but they still show up in git status :(
– Cfreak
Dec 28 '12 at 0:06
5
...
Is it good practice to NULL a pointer after deleting it?
... Imagaine a mainainer comming back a year later and seeing foo deleted. He now believes he can re-use the pointer unfortunately he may miss the second delete (it may not even be in the same function) and now the re-use of the pointer now gets trashed by the second delete. Any access after the second...
What is the use of static variable in C#? When to use it? Why can't I declare the static variable in
... variable. When I run this code the output will be 10 and 10. Its simple.
Now let's look at the static variable here; I am declaring the variable as a static.
Example with static variable:
public class Variable
{
public static int i = 5;
public void test()
{
i = i + 5;
...
Why do people use Heroku when AWS is present? What distinguishes Heroku from AWS? [closed]
...to scale up. Great. You're using Puppet for your EC2 deployment, right? So now you configure your Capistrano files to spin up/down instances as needed; you re-jig your Puppet config so Varnish is aware of web-worker instances and will automatically pool between them. Or you heroku scale web:+5.
Hop...
vertical-align with Bootstrap 3
...ly recommend you to use flexbox (as stated in @Haschem answer), since it's now supported everywhere.
Demos link:
- Bootstrap 3
- Bootstrap 4 alpha 6
You still can use a custom class when you need it:
.vcenter {
display: inline-block;
vertical-align: middle;
float:...
Deny access to one specific folder in .htaccess
... used this to disable direct access to my api files inside /api folder but now all webservice call sending 403 forbidden status .. I just want to block access when someone access it from browser.
– ravisoni
Jul 31 '14 at 9:25
...
How do I clone a Django model instance object and save it to the database?
...
Worth noting that this quotes Django 1.2, we're now up to Django 1.4. Haven't tested whether or not this works, but don't use this answer without being sure that it works for you.
– Joe
Oct 4 '12 at 11:37
...
How can I stop redis-server?
...6716] 02 Aug 15:48:44 * DB saved on disk
[6716] 02 Aug 15:48:44 # Redis is now ready to exit, bye bye...
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