random

How can I generate a random number without use of Math.Random?

由 依然范特西╮ 提交于 2020-01-12 15:36:40
问题 My project entails that I create a basic number guessing game that uses the JOptionPane and does not use Math.Random to create the random value. How would you go about doing this? I've completed everything except the random number generator. Thanks! 回答1: Here the code for a Simple random generator: public class SimpleRandom { /** * Test code */ public static void main(String[] args) { SimpleRandom rand = new SimpleRandom(10); for (int i = 0; i < 25; i++) { System.out.println(rand.nextInt());

How can I generate a random number without use of Math.Random?

由 前提是你 提交于 2020-01-12 15:33:33
问题 My project entails that I create a basic number guessing game that uses the JOptionPane and does not use Math.Random to create the random value. How would you go about doing this? I've completed everything except the random number generator. Thanks! 回答1: Here the code for a Simple random generator: public class SimpleRandom { /** * Test code */ public static void main(String[] args) { SimpleRandom rand = new SimpleRandom(10); for (int i = 0; i < 25; i++) { System.out.println(rand.nextInt());

Fast column shuffle of each row numpy

由 女生的网名这么多〃 提交于 2020-01-12 13:59:07
问题 I have a large 10,000,000+ length array that contains rows. I need to individually shuffle those rows. For example: [[1,2,3] [1,2,3] [1,2,3] ... [1,2,3]] to [[3,1,2] [2,1,3] [1,3,2] ... [1,2,3]] I'm currently using map(numpy.random.shuffle, array) But it's a python (not NumPy) loop and it's taking 99% of my execution time. Sadly, the PyPy JIT doesn't implement numpypy.random , so I'm out of luck. Is there any faster way? I'm willing to use any library ( pandas , scikit-learn , scipy , theano

随机数和一个随机数的定义格式

由 狂风中的少年 提交于 2020-01-12 12:25:42
import java . util . Random ; public class Kehouti444 { public static void main ( String [ ] args ) { //1:创建随机数对象 Random r = new Random ( ) ; int e = r . nextInt ( 100 ) ; //2:使用for循环,循环10次,即可得到10个数字; for ( int i = 0 ; i < 10 ; i ++ ) { //3:套用总结的通用公式,直接得出想要的范围的随机数 int x = r . nextInt ( 80 - 30 + 1 ) + 30 ; // 此时的x一定是一个满足要求的随机数 //4:输出这个随机数 System . out . println ( "第" + ( i + 1 ) + "次生成的随机数是:" + x ) ; } } } 来源： CSDN 作者： ???18339161838???? 链接： https://blog.csdn.net/q666_666_88_6/article/details/103749335

What's wrong with my Visual Studio auto-incrementing build number syntax?

由 为君一笑 提交于 2020-01-12 09:40:10
问题 i know Visual Studio has no way to increment the build number in a way that people would expect, but it support randomizing the build number: My AssemblyInfo.cs file contains: // Version information for an assembly consists of the following four values: // // Major Version // Minor Version // Build Number // Revision // // You can specify all the values or you can default the Build and Revision Numbers // by using the '*' as shown below: // [assembly: AssemblyVersion("1.0.*")] [assembly:

Cryptographically Secure Random String Function

由 半腔热情 提交于 2020-01-12 09:14:28
问题 Goal: Find the most cryptographically secure random string generator. Using Alphabetic, numeric and if possible special characters in the string. I have been reading on here and other places, but I still hear so many different answers/opinions. Can people who are up to date and knowledgeable about security and cryptography chime in here. The following functions will be used to generate a 8 character random password and also generate a 128 character random token. Function 1: /** * Used for

Transforming draws in Matlab from Gaussian mixture to uniform

由 試著忘記壹切 提交于 2020-01-12 08:25:52
问题 Consider the following draws for a 2x1 vector in Matlab with a probability distribution that is a mixture of two Gaussian components. P=10^3; %number draws v=1; %First component mu_a = [0,0.5]; sigma_a = [v,0;0,v]; %Second component mu_b = [0,8.2]; sigma_b = [v,0;0,v]; %Combine MU = [mu_a;mu_b]; SIGMA = cat(3,sigma_a,sigma_b); w = ones(1,2)/2; %equal weight 0.5 obj = gmdistribution(MU,SIGMA,w); %Draws RV_temp = random(obj,P);%Px2 % Transform each component of RV_temp into a uniform in [0,1]

Transforming draws in Matlab from Gaussian mixture to uniform

由 混江龙づ霸主 提交于 2020-01-12 08:25:43
问题 Consider the following draws for a 2x1 vector in Matlab with a probability distribution that is a mixture of two Gaussian components. P=10^3; %number draws v=1; %First component mu_a = [0,0.5]; sigma_a = [v,0;0,v]; %Second component mu_b = [0,8.2]; sigma_b = [v,0;0,v]; %Combine MU = [mu_a;mu_b]; SIGMA = cat(3,sigma_a,sigma_b); w = ones(1,2)/2; %equal weight 0.5 obj = gmdistribution(MU,SIGMA,w); %Draws RV_temp = random(obj,P);%Px2 % Transform each component of RV_temp into a uniform in [0,1]

Random Sample with remove from List

由 末鹿安然 提交于 2020-01-12 08:01:12
问题 I have data in a list like: L = [(3,4,5),(1,4,5),(1,2,3),(1,2,3)] I need to sample randomly a size of 2 so I wanted to use: import random t1 = random.sample(set(L),2) Now T1 is a List of the randomly pulled values, But i wanted to remove those randomly pulled from our initial list from our initial list. I could do a linear for loop but for the task I'm trying to do this for a larger list. so the Run time would take for ever! Any suggestions on how to go about this? 回答1: t1 = [L.pop(random

How to generate a random, unique, alphanumeric ID of length N in Postgres 9.6+?

由 亡梦爱人 提交于 2020-01-12 07:22:25
问题 I've seen a bunch of different solutions on StackOverflow that span many years and many Postgres versions, but with some of the newer features like gen_random_bytes I want to ask again to see if there is a simpler solution in newer versions. Given IDs which contain a-zA-Z0-9 , and vary in size depending on where they're used, like... bTFTxFDPPq tcgHAdW3BD IIo11r9J0D FUW5I8iCiS uXolWvg49Co5EfCo LOscuAZu37yV84Sa YyrbwLTRDb01TmyE HoQk3a6atGWRMCSA HwHSZgGRStDMwnNXHk3FmLDEbWAHE1Q9
订阅 random