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Standardize data columns in R
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@weber85, it is a "pipe" operator (from functional programming). Instead of writing f(g(x)) it would look nicer if one writes x %>% g %>% f. In other words, dat %>% mutate_each_(funs(scale),vars=c("y","z")) is just mutate_each_(dat,funs(scale),vars=c(...
Regex for splitting a string using space when not surrounded by single or double quotes
...ions or such long code. Essentially, you want to grab two kinds of things from your string: sequences of characters that aren't spaces or quotes, and sequences of characters that begin and end with a quote, with no quotes in between, for two kinds of quotes. You can easily match those things with ...
How does the static modifier affect this code?
... values are:
A obj=null
num1=0
num2=0
The second phase, execution, starts from top to bottom. In Java, the execution starts from the first static members.
Here your first static variable is static A obj = new A();, so first it will create the object of that variable and call the constructor, hence...
Creating Threads in python
...is work - take a look at the simple example I'm posting below to see how:
from threading import Thread
from time import sleep
def threaded_function(arg):
for i in range(arg):
print("running")
sleep(1)
if __name__ == "__main__":
thread = Thread(target = threaded_function, ...
How to copy files between two nodes using ansible
I need to copy file form machine A to machine B whereas my control machine from where i run all my ansible tasks is machine C(local machine)
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Switch statement: must default be the last case?
... of the example. The code isn't made up by this poster, but taken straight from the C standard, as an illustration of how weird switch statements are, and how bad practice will lead to bugs. If you had bothered to read the text below the code, you'd realize as much.
– Lundin
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assign multiple variables to the same value in Javascript
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Nothing stops you from doing
moveUp = moveDown = moveLeft = moveRight = mouseDown = touchDown = false;
Check this example
var a, b, c;
a = b = c = 10;
console.log(a + b + c)
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Best way to represent a Grid or Table in AngularJS with Bootstrap 3? [closed]
...ble.
Don't miss Smart Table!!!
I have no relation to Smart Table, except from using it myself.
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.gitignore is ignored by Git
...r current changes, or you will lose them.
Then run the following commands from the top folder of your Git repository:
git rm -r --cached .
git add .
git commit -m "fixed untracked files"
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How should I write tests for Forms in Django?
...form and not the view where the form is rendered. Example to get an idea:
from django.test import TestCase
from myapp.forms import MyForm
class MyTests(TestCase):
def test_forms(self):
form_data = {'something': 'something'}
form = MyForm(data=form_data)
self.assertTrue(...