大约有 1,742 项符合查询结果（耗时：0.0201秒） [XML]
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
...
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)...
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
...
How do you sort a dictionary by value?
...pair1.Value.CompareTo(pair2.Value);
}
);
Since you're targeting .NET 2.0 or above, you can simplify this into lambda syntax -- it's equivalent, but shorter. If you're targeting .NET 2.0 you can only use this syntax if you're using the compiler from Visual Studio 2008 (or above).
var myList ...
Creating dataframe from a dictionary where entries have different lengths
... mydict.items() })
>>> dict_df
one 2 3
0 1.0 4 8.0
1 2.0 5 NaN
2 3.0 6 NaN
3 NaN 7 NaN
A similar syntax exists for lists, too:
>>> mylist = [ [1,2,3], [4,5], 6 ]
>>> list_df = pd.DataFrame([ pd.Series(value) for value in mylist ])
>>> lis...
Hide separator line on one UITableViewCell
...ro. cell.separatorInset = UIEdgeInsetsMake(0, CGRectGetWidth(cell.bounds)/2.0, 0, CGRectGetWidth(cell.bounds)/2.0)
– Harris
Jan 25 '15 at 10:54
9
...
Add context path to Spring Boot application
...ies:
server.contextPath=/mainstay
server.port=12378
UPDATE (Spring Boot 2.0)
As of Spring Boot 2.0 (due to the support of both Spring MVC and Spring WebFlux) the contextPath has been changed to the following:
server.servlet.contextPath=/mainstay
You can then remove your configuration for the ...
Set UILabel line spacing
...ment - lineSpacing or lineHeightMultiple
label.setLineSpacing(lineSpacing: 2.0) . // try values 1.0 to 5.0
// or try lineHeightMultiple
//label.setLineSpacing(lineHeightMultiple = 2.0) // try values 0.5 to 2.0
Or using label instance (Just copy & execute this code to see result)
let label =...
Xamarin 2.0 vs Appcelerator Titanium vs PhoneGap [duplicate]
After all IDE evolutions (all platforms on topic are changed) of this year, i'm looking to understand what is the state of technology for those platforms.
...