R help - Sep 2013 - computationaly singular error!

Hi there,

I am trying to estimate the mlogit model. but I get the following error.

Error in solve.default(H, g[!fixed]) : 
  system is computationally singular: reciprocal condition number 4.65795e-19

I have googled it and found out the collinearity between independent
variables cause this error. when I use VIF to test the collinearity,
everything is fine i.e. result shows NO collinearity!

Does anyone have any idea about this error?

Thanks in advance.  



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> Error in solve.default(H, g[!fixed]) : 
>   system is computationally singular: reciprocal condition number >
4.65795e-19
>
Maybe you have more predictors than data?

S Ellison 

 


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