I need to implement a randomization from JSON result.
The format of the JSON is two objects:
result:
Question(object)
[Object { id="4c6e9a41470b19_96235904", more...},
Object { id="4c784e6e928868_58699409", more...},
Object { id="4c6ecd074662c5_02703822", more...}, 6 more...]
Topic(object)
[Object { id="3jhf3533279827_2342...
I'd like to produce fast random shuffles repeatedly with minimal bias.
It's known that the Fisher-Yates shuffle is unbiased as long as the underlying random number generator (RNG) is unbiased.
To shuffle an array a of n elements:
for i from n − 1 downto 1 do
j ← random integer with 0 ≤ j ≤ i
exchange a[j] and a[i]
But...
I'm writing some modelling routines in NumPy that need to select cells randomly from a NumPy array and do some processing on them. All cells must be selected without replacement (as in, once a cell has been selected it can't be selected again, but all cells must be selected by the end).
I'm transitioning from IDL where I can find a nice...
This C# program is suppose to be a blackjack program but I need to 'SHUFFLE' the card and just display the 'HAND'
The rest i think I can manage... can someone help me?
...
Can't figure out how to merge two lists in the following way in Haskell:
INPUT: [1,2,3,4,5] [11,12,13,14]
OUTPUT: [1,11,2,12,3,13,4,14,5]
This would work similar to shuffling a deck of cards.
Thanks in advance.
...
Just as background, I'm aware of the Fisher-Yates perfect shuffle. It is a great shuffle with its O(n) complexity and its guaranteed uniformity and I'd be a fool not to use it ... in an environment that permits in-place updates of arrays (so in most, if not all, imperative programming environments).
Sadly the functional programming wor...
I am attempting to shuffle an array, but the way I am doing it only works about every fifth time. I would greatly appreciate if someone could explain why it is not working properly and perhaps propose a tweak.
private Button[] scrambleBoard(Button[] buttons)
{
for (int x = 100 * buttons.Count(); x > 0; x--)
{
Random rand...