https://communities.sas.com/t5/Statistical-Procedures/Covariance-of-two-binary-variables-in-survey-data/m-p/397793#M20745 <PRE> If I was right, I remember PROC DISTANCE can do this. </PRE> Thu, 21 Sep 2017 15:09:23 GMT Ksharp 2017-09-21T15:09:23Z https://communities.sas.com/t5/Statistical-Procedures/Covariance-of-two-binary-variables-in-survey-data/m-p/397781#M20742 <P>Could anyone please help me the way to calculate the covariance of two dichotomous variable in survey data please. Thank you very much.</P> Thu, 21 Sep 2017 14:04:41 GMT https://communities.sas.com/t5/Statistical-Procedures/Covariance-of-two-binary-variables-in-survey-data/m-p/397781#M20742 ThanhUSF 2017-09-21T14:04:41Z https://communities.sas.com/t5/Statistical-Procedures/Covariance-of-two-binary-variables-in-survey-data/m-p/397787#M20743 <P>Hi,</P> <P>&nbsp;</P> <P>Why covariance? What are trying to study based this?</P> Thu, 21 Sep 2017 14:24:47 GMT https://communities.sas.com/t5/Statistical-Procedures/Covariance-of-two-binary-variables-in-survey-data/m-p/397787#M20743 stat_sas 2017-09-21T14:24:47Z https://communities.sas.com/t5/Statistical-Procedures/Covariance-of-two-binary-variables-in-survey-data/m-p/397793#M20745 <PRE> If I was right, I remember PROC DISTANCE can do this. </PRE> Thu, 21 Sep 2017 15:09:23 GMT https://communities.sas.com/t5/Statistical-Procedures/Covariance-of-two-binary-variables-in-survey-data/m-p/397793#M20745 Ksharp 2017-09-21T15:09:23Z https://communities.sas.com/t5/Statistical-Procedures/Covariance-of-two-binary-variables-in-survey-data/m-p/397800#M20746 <P>From&nbsp;my literature review, I need to adjust the coeficient of a logistics regression which requires the calcilation of covariance between 2 variables. In my case both a binary. Since my data&nbsp;are survey data, I need to use proc surveyreg but couldn't figure out the way to calculate the covariance with proc surveyfreq. Hope that helps.&nbsp;</P> Thu, 21 Sep 2017 15:31:17 GMT https://communities.sas.com/t5/Statistical-Procedures/Covariance-of-two-binary-variables-in-survey-data/m-p/397800#M20746 ThanhUSF 2017-09-21T15:31:17Z https://communities.sas.com/t5/Statistical-Procedures/Covariance-of-two-binary-variables-in-survey-data/m-p/397803#M20747 <P>Thank you for helping.&nbsp;I think&nbsp; Proc Distance are for random sampling data since it doesn't provide the options for variance estimate such as BRR method in other proc survey</P> Thu, 21 Sep 2017 15:36:40 GMT https://communities.sas.com/t5/Statistical-Procedures/Covariance-of-two-binary-variables-in-survey-data/m-p/397803#M20747 ThanhUSF 2017-09-21T15:36:40Z