How would I generate a random date that has to be between two other given dates? The function’s signature should be something like this: random_date(“1/1/2008 1:30 PM”, “1/1/2009 4:50 AM”, 0.34) ^ ^ ^ date generated has date generated has a random number to be after this to be before this and would return a … Read more
I want to implement a machine learning algorithm in scikit learn, but I don’t understand what this parameter random_state does? Why should I use it? I also could not understand what is a Pseudo-random number. 7 Answers 7
I need a quick algorithm to select 5 random elements from a generic list. For example, I’d like to get 5 random elements from a List<string>. 32 Answers 32 Using linq: YourList.OrderBy(x => rnd.Next()).Take(5)
How can I get a random pair from a dict? I’m making a game where you need to guess a capital of a country and I need questions to appear randomly. The dict looks like {‘VENEZUELA’:’CARACAS’} How can I do this? 19 Answers 19
This question already has answers here: How do I generate random integers within a specific range in Java? (70 answers) Closed 7 years ago. I would like to know how to generate a random number between two given values. I am able to generate a random number with the following: Random r = new Random(); … Read more
I would like an efficient utility to generate unique sequences of bytes. UUID is a good candidate but UUID.randomUUID().toString() generates stuff like 44e128a5-ac7a-4c9a-be4c-224b6bf81b20 which is good, but I would prefer dash-less string. I’m looking for an efficient way to generate a random strings, only from alphanumeric characters (no dashes or any other special symbols). 10 … Read more
Many times I have seen the set.seed function in R, before starting the program. I know it’s basically used for the random number generation. Is there any specific need to set this? 7 Answers 7
To generate a random number between 3 and 10, for example, I use: rand(8) + 3 Is there a nicer way to do this (something like rand(3, 10)) ? 8 Answers 8
If I have an enum like this: public enum Letter { A, B, C, //… } What is the best way to pick one randomly? It doesn’t need to be production quality bulletproof, but a fairly even distribution would be nice. I could do something like this private Letter randomLetter() { int pick = new … Read more
Suppose I have an array and I want to pick one element at random. What would be the simplest way to do this? The obvious way would be array[random index]. But perhaps there is something like ruby’s array.sample? Or if not could such a method be created by using an extension? 16 Answers 16
