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Random row selection in Pandas dataframe
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58
Something like this?
import random
def some(x, n):
return x.ix[random.sample(x.index, n)]...
How can I round to whole numbers in JavaScript?
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Can you write nested functions in JavaScript?
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Join an Array in Objective-C
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NSArray *array1 = [NSArray arrayWithObjects:@"1", @"2", @"3", nil];
NSString *joinedString = [a...
Copy text to clipboard with iOS
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edited Aug 24 at 15:46
Iulian Onofrei
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an...
Map and Reduce in .NET
...inq then you don’t need to write your own map and reduce functions. C# 3.5 and Linq already has it albeit under different names.
Map is Select:
Enumerable.Range(1, 10).Select(x => x + 2);
Reduce is Aggregate:
Enumerable.Range(1, 10).Aggregate(0, (acc, x) => acc + x);
Filter is Where:
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How do I get whole and fractional parts from double in JSP/Java?
...et whole and fractional parts from double in JSP/Java ? If the value is 3.25 then I want to get fractional =.25 , whole = 3
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How to find index of list item in Swift?
... is supported by another extension of CollectionType:
let arr2 = [1,2,3,4,5,6,7,8,9,10]
let indexOfFirstGreaterThanFive = arr2.indexOf({$0 > 5}) // 5
let indexOfFirstGreaterThanOneHundred = arr2.indexOf({$0 > 100}) // nil
Note that these two functions return optional values, as find did bef...
Split list into multiple lists with fixed number of elements
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