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Extracting specific columns in numpy array
...l I want to do is extract specific columns and store them in another numpy array but I get invalid syntax errors.
Here is the code:
...
How to print the full NumPy array, without truncation?
When I print a numpy array, I get a truncated representation, but I want the full array.
18 Answers
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Java code To convert byte to Hexadecimal
I have an array of bytes.
I want each byte String of that array to be converted to its corresponding hexadecimal values.
19...
How can I split a string into segments of n characters?
...is empty, then match() will return null when you may be expecting an empty array. Protect against this by appending || [].
So you may end up with:
var str = 'abcdef \t\r\nghijkl';
var parts = str.match(/[\s\S]{1,3}/g) || [];
console.log(parts);
console.log(''.match(/[\s\S]{1,3}/g) || [])...
Create numpy matrix filled with NaNs
...need loops for vector operations in numpy.
You can create an uninitialized array and assign to all entries at once:
>>> a = numpy.empty((3,3,))
>>> a[:] = numpy.nan
>>> a
array([[ NaN, NaN, NaN],
[ NaN, NaN, NaN],
[ NaN, NaN, NaN]])
I have timed th...
What's the rationale for null terminated strings?
...emantics of strings are fully subsumed by more general rules governing all arrays, and as a result the language is simpler to describe..."
– AShelly
Nov 13 '15 at 17:41
add a ...
How to make a select with array contains value clause in psql
I have column arr which is of type array .
3 Answers
3
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PHP json_encode encoding numbers as strings
...
I've done a very quick test :
$a = array(
'id' => 152,
'another' => 'test',
'ananother' => 456,
);
$json = json_encode($a);
echo $json;
This seems to be like what you describe, if I'm not mistaken ?
And I'm getting as output :
{"id":15...
map function for objects (instead of arrays)
... 6 }
console.log(myObject);
// => { 'a': 1, 'b': 2, 'c': 3 }
Array.prototype.reduce reduces an array to a single value by somewhat merging the previous value with the current. The chain is initialized by an empty object {}. On every iteration a new key of myObject is added with twice t...
Iteration ng-repeat only X times in AngularJs
...s should be the answer, as it also works with iterating over objects in an array. Plus its a Angular feature.
– Ashley Coolman
May 22 '14 at 23:41
29
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