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How to refresh app upon shaking the device?
... public void onSensorChanged(SensorEvent se) {
float x = se.values[0];
float y = se.values[1];
float z = se.values[2];
mAccelLast = mAccelCurrent;
mAccelCurrent = (float) Math.sqrt((double) (x*x + y*y + z*z));
float delta = mAccelCurrent - mAccelLast;
mAcc...
python pandas: apply a function with arguments to a series
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170
Newer versions of pandas do allow you to pass extra arguments (see the new documentation). So no...
How to split a sequence into two pieces by predicate?
...ing partition method:
scala> List(1,2,3,4).partition(x => x % 2 == 0)
res0: (List[Int], List[Int]) = (List(2, 4),List(1, 3))
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Use StringFormat to add a string to a WPF XAML binding
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220
Your first example is effectively what you need:
<TextBlock Text="{Binding CelsiusTemp, Stri...
How to create a new branch from a tag?
...e to create a new master branch from an existing tag. Say I have a tag v1.0 . How to create a new branch from this tag?
7 ...
How to list npm user-installed packages?
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1305
This works pretty well too: npm list -g --depth=0
npm: the Node package manager command line ...
error: ‘NULL’ was not declared in this scope
...
answered Jan 20 '09 at 17:14
Johannes Schaub - litbJohannes Schaub - litb
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How do I parse JSON with Objective-C?
...
With the perspective of the OS X v10.7 and iOS 5 launches, probably the first thing to recommend now is NSJSONSerialization, Apple's supplied JSON parser. Use third-party options only as a fallback if you find that class unavailable at runtime.
So, for exampl...
Removing a list of characters in string
...e) == test
t = timeit.timeit(lambda: f(subj, chars_to_remove), number=1000)
print ('{0:.3f} {1}'.format(t, f.__name__))
print (sys.version)
PYTHON2 = sys.version_info[0] == 2
print ('\n"plain" string:\n')
chars_to_remove = ['.', '!', '?']
subj = 'A.B!C?' * 1000
test = 'ABC' * 1000
profil...
List comprehension vs map
... map when using exactly the same function:
$ python -mtimeit -s'xs=range(10)' 'map(hex, xs)'
100000 loops, best of 3: 4.86 usec per loop
$ python -mtimeit -s'xs=range(10)' '[hex(x) for x in xs]'
100000 loops, best of 3: 5.58 usec per loop
An example of how performance comparison gets completely r...