【求助】ranuni(5555) < .5 这里边的参数具体是什么意思？

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【求助】ranuni(5555) < .5 这里边的参数具体是什么意思？

麻烦知道的好心人告诉我以下，这个随机数生成函数 中   5555    0.5   具体是什么意思。

或者share一份随机数生成函数的资料给到偶，不胜感激，谢谢。

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关键词：ranuni 是什么意思 RAN ANU 随机数生成 求助 意思 参数 ranuni

1# lizziezeng

ranuni(5555) < .5

Create a random number with uniform (0, 1) distribution using seed number of 555. and then compare the random number to a constant of .5. Of note, the seed number which makes the replication of those random numbers possible is not essential here. That is, the results should be very similar to ranuni(123) < .5.
For example,

1. 
   
2. Male = (ranuni(5555) < .5)

复制代码

is to create a sample about gender in which the ratio of male and female is approximately half to half.

jingju11 发表于 2010-1-2 00:39
1# lizziezeng

Of note, the seed number which makes the replication of those random numbers possible is not essential here. That is, the results should be very similar to ranuni(123) < .5.这一段不理解。例子也看不明白，详求解