https://communities.sas.com/t5/Statistical-Procedures/Model-Developmet/m-p/251904#M13289 <P>Hi Folks - I tried to develope a model using glimmix procedure.&nbsp;</P><P>However, the t-value of some coefficients is M or I. Do you have any idea why and how can I fix the problem?</P><P>&nbsp;</P><P>&nbsp;</P><P><IMG src="https://communities.sas.com/t5/image/serverpage/image-id/2005iE254A2B8E245510A/image-size/original?v=mpbl-1&amp;px=-1" border="0" alt="sas.png" title="sas.png" /></P><P>&nbsp;</P><P>Thanks</P> Tue, 23 Feb 2016 23:22:57 GMT Moh 2016-02-23T23:22:57Z https://communities.sas.com/t5/Statistical-Procedures/Model-Developmet/m-p/251904#M13289 <P>Hi Folks - I tried to develope a model using glimmix procedure.&nbsp;</P><P>However, the t-value of some coefficients is M or I. Do you have any idea why and how can I fix the problem?</P><P>&nbsp;</P><P>&nbsp;</P><P><IMG src="https://communities.sas.com/t5/image/serverpage/image-id/2005iE254A2B8E245510A/image-size/original?v=mpbl-1&amp;px=-1" border="0" alt="sas.png" title="sas.png" /></P><P>&nbsp;</P><P>Thanks</P> Tue, 23 Feb 2016 23:22:57 GMT https://communities.sas.com/t5/Statistical-Procedures/Model-Developmet/m-p/251904#M13289 Moh 2016-02-23T23:22:57Z https://communities.sas.com/t5/Statistical-Procedures/Model-Developmet/m-p/252016#M13300 <P>Note that the standard errors in those cases is 0, so the calculation will involve division by 0.&nbsp;</P><P>&nbsp;</P><P>Without your data, it's impossible to say what is causing this, but it could be perfect collinearity, I think.</P> Wed, 24 Feb 2016 12:11:42 GMT https://communities.sas.com/t5/Statistical-Procedures/Model-Developmet/m-p/252016#M13300 plf515 2016-02-24T12:11:42Z