Aptech Systems, Inc. Worldwide Headquarters
Aptech Systems, Inc.
2350 East Germann Road, Suite #21
Chandler, AZ 85286
Ready to Get Started?
Request Quote & Product Information
Training & Events
Step-by-step, informative lessons for those who want to dive into GAUSS and achieve their goals, fast.
Have a Specific Question?
Q&A: Register and Login
Premier Support and Platinum Premier Support are annually renewable membership programs that provide you with important benefits including technical support, product maintenance, and substantial cost-saving features for your GAUSS System or the GAUSS Engine.
Join our community to see why our users are considered some of the most active and helpful in the industry!
Where to Buy
Recent Tagsapplications character vectors CML CMLMT Constrained Optimization datasets dlibrary dllcall econometrics error error codes error handling errors Excel file i/o floating network GAUSS Engine GAUSS Light graphics GUI hotkeys installation Java API license licensing linux loading data loops matrices matrix manipulation Maxlik MaxLikMT Memory multidimensional array optimization Optmum output panel data PQG graphics procs random numbers strings structures threading writing data
Time Series 2.0 MT
Find out more now
Time Series MT 2.1
Find out more now
rndWishart error with scalar covariance matrix
when I type
in Gauss 13, I get the error message ``(0) : error G0648 : Incorrect input: Covariance matrix not positive definite'', although the scalar covariance ``matrix'' (second input, = 2) is obviously positive definite.
Is this problem related to the input being a scalar? I get no error message when I type ``2*eye(2)'' instead of ``2'' in the command above. On the other hand, the help file does not seem to exclude the case that the covariance matrix is a scalar.
Thanks in advance,
PS: I am using Kernel 13.0.9.
The error is indeed being returned because the incoming covariance matrix is a scalar. I will forward this to development and get their thoughts on the matter.