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Creating an R dataframe row-by-row
...ficiently.
With some cleverness behind the scenes, you can sometimes arrange to have one foot in each world. Snapshot based file systems are a good example (which evolved from concepts such as union mounts, which also ply both sides).
If R Core wanted to do this, underlying vector storage co...
Else clause on Python while statement
...rather than just one.
for k in [2, 3, 5, 7, 11, 13, 17, 25]:
for m in range(2, 10):
if k == m:
continue
print 'trying %s %% %s' % (k, m)
if k % m == 0:
print 'found a divisor: %d %% %d; breaking out of loop' % (k, m)
break
else:
...
Everyauth vs Passport.js?
...lopment history, mature.
no longer maintained
great docs
works with a wide range of services
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How do I represent a time only value in .NET?
...time I'm talking about is not an interval, but a single fixed point over a range of dates.
– sduplooy
Jan 10 '10 at 14:40
3
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Functional programming vs Object Oriented programming [closed]
...the problem domain. For example, see list comprehensions in Python or std.range in the D programming language. These are inspired by functional programming.
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Boolean vs boolean in Java
...rst).
Bytes are not types or bits
Note that in memory your variable from range of {0,1} will still occupy at least a byte or a word (xbits depending on the size of the register) unless specially taken care of (e.g. packed nicely in memory - 8 "boolean" bits into 1 byte - back and forth).
By prefe...
Magic number in boost::hash_combine
...s of the old seed makes sure that, even if hash_value() has a fairly small range of values, differences will soon be spread across all the bits.
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How to remove certain characters from a string in C++?
...
Here is a different solution for anyone interested. It uses the new For range in c++11
string str("(555) 555-5555");
string str2="";
for (const auto c: str){
if(!ispunct(c)){
str2.push_back(c);
}
}
str = str2;
//output: 555 5555555
cout<<str<<endl;
...
.NET List Concat vs AddRange
What is the difference between the AddRange and Concat functions on a generic List? Is one recommended over the other?
...
How to make an Android device vibrate?
...omplex Vibrations
There are multiple SDKs that offer a more comprehensive range of haptic feedback. One that I use for special effects is Immersion's Haptic Development Platform for Android.
Troubleshooting
If your device won't vibrate, first make sure that it can vibrate:
// Get instance of Vib...