Tags » Random Number

Matlab Tutorials

Advanced level tutorial of some basic stuffs. It is assumed that the reader has some knowledge about basic commands in matlab.

Choosing two random elements from a 100 X 100 matrix. 375 more words


Random Number Generator

A little blast from the past. Before the random fortune teller and the random word generator, I started out pairing together Storyline and Javascript with this simple random number generator. 69 more words


Generating Random Numbers For All Rows in a Query and Other Funky Stuff You Can Do With Them

Here’s a lunchtime quickie for you all, this is something that I’ve seen asked on the forums plenty of times and always gets some quite convoluted responses. 887 more words

Database Administration

Game 4: Models: Sampling from a distribution/population (Discrete r.v.)

Random Variable

  • 整體狀況/母體 (population)
  • 通常以pmf (probability mass  function,離散型隨機變數); pdf (probability density function,連續型隨機變數) 來刻畫一個可以無限取樣的母體
  • pmf/pdf 可理解為一個經標準化(面積為1)樣本無限大的長條圖(histogram)