What is the difference between mvnrnd and normrnd?
显示 更早的评论
I can not find out what is the difference between these two random number generator functions.
2 个评论
Rohit Jain
2015-5-15
mvnrnd() is the function used to generate pseudo random numbers that follow multi variate normal distribution. mvnrnd() is more for creating correlated random variables normrnd() is the function used to generate pseudo random numbers that follow normal distribution. normrnd() is generally faster than mvnrnd(). For more information on mvnrnd() and normrnd() follow the documentation http://www.mathworks.com/help/stats/mvnrnd.html
Another difference to emphasize here is that if you want to use mvnrnd() for the univariate case you should use the variance directly. For normrnd(), you need to use the standard deviation. Thus, the input for each function should look like: mvnrnd(mean,var) Vs normrnd(mean,sd)
采纳的回答
Rohit Jain
2015-5-15
0 个投票
mvnrnd() is the function used to generate pseudo random numbers that follow multi variate normal distribution. mvnrnd() is more for creating correlated random variables normrnd() is the function used to generate pseudo random numbers that follow normal distribution. normrnd() is generally faster than mvnrnd(). For more information on mvnrnd() and normrnd() follow the documentation http://www.mathworks.com/help/stats/mvnrnd.html
更多回答（1 个）
Adnane123
2015-9-18
0 个投票
Another difference to emphasize here is that if you want to use mvnrnd() for the univariate case you should use the variance directly. For normrnd(), you need to use the standard deviation. Thus, the input for each function should look like: mvnrnd(mean,var) Vs normrnd(mean,sd)
类别
在 帮助中心 和 File Exchange 中查找有关 Random Number Generation 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
