Simulation using SAS

[GehadElsayed123]

 i want to simulate and compute the T- square multivariate control chart by using SAS/STAT 

and i  start write the code but i can't finish it 

[PeterClemmensen]

This may be of help

http://sas-and-r.blogspot.dk/2010/05/example-737-calculation-of-hotellings.html

[Rick_SAS]

Tsquared is the squared Mahalanobis distance (with estimated covariance) between the observed mean and the null hypothesis mean. So use the following (untested):

S = cov(X);  /* observed covariance */

xbar = mean(X); /* observed mean */

T2 = m*(xbar - mean)`*inv(S)*(xbar - mean);