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Where can I learn how to write C code to speed up slow R functions? [closed]
...tic function:
Rcpp::NumericVector x = Rcpp::NumericVector::create( 1.0, 2.0, 3.0 ) ;
Rcpp::NumericVector x = Rcpp::NumericVector::create(
_["a"] = 1.0,
_["b"] = 2.0,
_["c"] = 3
) ;
Of a given size:
Rcpp::NumericVector x( 10 ) ; // filled with 0.0
Rcpp::NumericVector x(...
What is the most pythonic way to check if an object is a number?
...decimal import Decimal
... from fractions import Fraction
... for n in [2, 2.0, Decimal('2.0'), complex(2, 0), Fraction(2, 1), '2']:
... print(f'{n!r:>14} {isinstance(n, Number)}')
2 True
2.0 True
Decimal('2.0') True
(2+0j) True
Fraction(2, 1) True
...
Is it wrong to use Deprecated methods or classes in Java?
...ormance issue; its too subjective to state that.
– KMån
May 31 '10 at 7:44
1
@KMan A function be...
Changing UIImage color
...deAlwaysTemplate];
[theImageView setTintColor:[UIColor redColor]];
Swift 2.0:
theImageView.image = theImageView.image?.imageWithRenderingMode(.AlwaysTemplate)
theImageView.tintColor = UIColor.magentaColor()
Swift 4.0:
theImageView.image = theImageView.image?.withRenderingMode(.alwaysTemplate)...
Load image from url
...ining both ways: medium.com/@crossphd/…
– Martin Jäkel
Feb 22 '19 at 9:43
...
How to programmatically cause a core dump in C/C++
...pa answer, helped my a lot for this answer.
– Boris Däppen
Feb 11 '19 at 18:22
add a comment
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...
Need for predictable random generator
...ndomness in small runs of some games is undesirable -- it does seem too unfair for some use cases.
I wrote a simple Shuffle Bag like implementation in Ruby and did some testing. The implementation did this:
If it still seems fair or we haven't reached a threshold of minimum rolls, it returns a...
ORA-01882: timezone region not found
...ope/Zurich" when using "ant". It worked!
– Christof Kälin
Jun 28 '18 at 9:00
2
This should be th...
How can I split a JavaScript string by white space or comma?
...str_variable.replace(/[,'"]+/gi, ' ').split(' ')
– qräbnö
Jun 26 at 18:35
add a comment
...
Reusable library to get human readable version of file size?
...e examples using the data from the OP: humanize.naturalsize(2048) # => '2.0 kB' , humanize.naturalsize(2048, binary=True) # => '2.0 KiB' humanize.naturalsize(2048, gnu=True) # => '2.0K'
– RubenLaguna
Jan 27 '16 at 10:10
...