How to simulate Chi-squared distribution

[nenyan]

Is there any algorithm to simulate Chi-squared distribution?
Here, the degrees of freedom is very large. It may be 10^8.

 

[mathman]

http://www.math.uah.edu/stat/special/ChiSquare.html

Google "chi squared distribution simulation" to get more.

 

[marcusl]

The Central Limit Theorem says that chi-squared approaches a normal distribution when the number of DOF's k becomes large. A normal distribution is an excellent approximation for k>50 in most cases, so it should be near perfect for k=10^8.

 

[nenyan]

The Central Limit Theorem says that chi-squared approaches a normal distribution when the number of DOF's k becomes large. A normal distribution is an excellent approximation for k>50 in most cases, so it should be near perfect for k=10^8.

Yes. Thank you very much.