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Map function in MATLAB?
...) x^2, 1:10)
y =
1 4 9 16 25 36 49 64 81 100
There are two other built-in functions that behave similarly: cellfun (which operates on elements of cell arrays) and structfun (which operates on each field of a structure).
However, these functions are often not nece...
How can I merge two hashes without overwritten duplicate keys in Ruby?
...hash. Here's the pure Ruby solution without Rails:
options = { "a" => 100, "b" => 200 }
defaults = { "b" => 254, "c" => 300 }
options.merge!(defaults.select{ |k,_| not options.has_key? k })
# output
# => {"a"=>100, "b"=>200, "c"=>300}
Or if the key is present, but cont...
Remove large .pack file created by git
... even fancier options (see docs) like these:
Remove all files bigger than 100M from history:
java -jar bfg.jar --strip-blobs-bigger-than 100M some-big-repo.git
Important!
When running BFG, be careful that both YOUR_FILE_NAME and YOUR_FOLDER_NAME are indeed just file/folder names. They're not ...
How can I position my div at the bottom of its container?
...ember that you can just include a wrapper div inside of the container with 100% height, and add position:relative to that instead.
– Jack Shepherd
Aug 17 '11 at 17:16
...
How to detect the swipe left or Right in Android?
...eDetector implements View.OnTouchListener{
private int min_distance = 100;
private float downX, downY, upX, upY;
private View v;
private onSwipeEvent swipeEventListener;
public SwipeDetector(View v){
this.v=v;
v.setOnTouchListener(this);
}
public voi...
Has Facebook sharer.php changed to no longer accept detailed parameters?
...
I review your url in use:
https://www.facebook.com/sharer/sharer.php?s=100&p[title]=EXAMPLE&p[summary]=EXAMPLE&p[url]=EXAMPLE&p[images][0]=EXAMPLE
and see this differences:
The sharer URL not is same.
The strings are in different order. ( Do not know if this affects ).
I us...
When should an IllegalArgumentException be thrown?
...ns; there's no point in catching them, so that's perfectly fine.
It's not 100% clear from your example which case this example is in your code, though.
share
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How can I make a div stick to the top of the screen once it's been scrolled to?
... {
background-color: #c0c0c0;
position:fixed;
top:0;
width:100%;
z-index:100;
}
Edit: You should have the element with position absolute, once the scroll offset has reached the element, it should be changed to fixed, and the top position should be set to zero.
You can detect t...
How do I use disk caching in Picasso?
...ew OkHttpClient();
okHttpClient.setCache(new Cache(getCacheDir(), 100 * 1024 * 1024)); //100 MB cache, use Integer.MAX_VALUE if it is too low
OkHttpDownloader downloader = new OkHttpDownloaderDiskCacheFirst(okHttpClient);
Picasso.Builder builder = new Picasso.Builder(this)...
Convert pandas dataframe to NumPy array
... (actually, using rec.fromrecords is a bit faster).
df2 = pd.concat([df] * 10000)
%timeit df2.to_records()
%%timeit
v = df2.reset_index()
np.rec.fromrecords(v, names=v.columns.tolist())
11.1 ms ± 557 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)
9.67 ms ± 126 µs per loop (mean ± s...