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Cosine Similarity between 2 Number Lists
...sed on numpy only
from numpy import dot
from numpy.linalg import norm
cos_sim = dot(a, b)/(norm(a)*norm(b))
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Is there an easy way to request a URL in python and NOT follow redirects?
...st way to do it would be to subclass HTTPRedirectHandler and then use build_opener to override the default HTTPRedirectHandler, but this seems like a lot of (relatively complicated) work to do what seems like it should be pretty simple.
...
How to implement a queue with three stacks?
...s of you good ideas.
EDIT: Explanation example:
| | | |3| | | |
| | | |_| | | |
| | |_____| | |
| | | |
| | |2| | |
| | |_| | |
| |_________| |
| |
| |1| |
| |_| |
|_____________|
I tried here with a little ASCII-art to show Stack1.
Every ...
Calculate distance between 2 GPS coordinates
...y solution:
#include <math.h>
#include "haversine.h"
#define d2r (M_PI / 180.0)
//calculate haversine distance for linear distance
double haversine_km(double lat1, double long1, double lat2, double long2)
{
double dlong = (long2 - long1) * d2r;
double dlat = (lat2 - lat1) * d2r;
...
Can anyone explain python's relative imports?
...from package "sub". start.py is not itself in a package even if there is a __init__.py present.
You would need to start your program from one directory over parent.py:
./start.py
./pkg/__init__.py
./pkg/parent.py
./pkg/sub/__init__.py
./pkg/sub/relative.py
With start.py:
import pkg.sub.relativ...
What is getattr() exactly and how do I use it?
...answered Apr 10 '19 at 9:42
blue_noteblue_note
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...
mongodb count num of distinct values per field/key
...}
},
{ $unwind: "$keywords" },
{
$group: {
_id: {$toLower: '$keywords'},
count: { $sum: 1 }
}
},
{
$match: {
count: { $gte: 2 }
}
},
{ $sort : { count : -1} },
{ $limit : 100 }
]);
that give result ...
Get hours difference between two dates in Moment Js
...ent('2016-06-06T22:34:56'); var b = moment('2016-06-06T21:03:55'); var diff_s = a.diff(b, 'seconds'); console.log(moment.utc(moment.duration(diff_s, "seconds").asMilliseconds()).format("hh:mm:ss"))
– user632905
Jul 12 at 15:35
...
In Flux architecture, how do you manage Store lifecycle?
...cher. Moving from one pseudo-page to another would probably involve a PAGE_UPDATE action, which would trigger the invocation of initialize(). There are details to work out around retrieving data from the local cache, retrieving data from the server, optimistic rendering and XHR error states, but t...
while (1) vs. while(True) — Why is there a difference (in python 2 bytecode)?
...oes.
Here's 2.7:
>>> dis.dis('True == 1')
1 0 LOAD_GLOBAL 0 (True)
3 LOAD_CONST 1 (1)
6 COMPARE_OP 2 (==)
9 RETURN_VALUE
>>> dis.dis('True == 1')
1 0 LOAD_GLOBAL ...