Understanding Spikeslab Output












3












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I'm using spikeslab for the first time, but don't understand what the output means. It was suggested to me that I use it to tell which variables my dependent variable is most correlated to, in a ranked order.
Particuarly, what is "bma" bma.scale" "gnet" and "gnet.scale"? I also don't understand how to read the corresponding plot to the model.Thanks for any help!



For example, this is one of the models I created using spikeslab, with its output:



model2_ss <-spikeslab(Risk_Pct ~ Race
+ +hispanic
+ +Born_In_US
+ +Highest_Education
+ +Marital_Status
+ , na.rm = TRUE, data = LabeledData)
> model2_ss
-------------------------------------------------------------------
Variable selection method : AIC
Big p small n : FALSE
Screen variables : FALSE
Fast processing : TRUE
Sample size : 26
No. predictors : 5
No. burn-in values : 500
No. sampled values : 500
Estimated mse : 0.4299
Model size : 3


---> Top variables:
bma gnet bma.scale gnet.scale
Marital_Status 0.516 0.516 0.319 0.319
Born_In_US -0.469 -0.447 -0.440 -0.419
Race 0.458 0.421 0.926 0.851


Plot of model2_ss










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    3












    $begingroup$


    I'm using spikeslab for the first time, but don't understand what the output means. It was suggested to me that I use it to tell which variables my dependent variable is most correlated to, in a ranked order.
    Particuarly, what is "bma" bma.scale" "gnet" and "gnet.scale"? I also don't understand how to read the corresponding plot to the model.Thanks for any help!



    For example, this is one of the models I created using spikeslab, with its output:



    model2_ss <-spikeslab(Risk_Pct ~ Race
    + +hispanic
    + +Born_In_US
    + +Highest_Education
    + +Marital_Status
    + , na.rm = TRUE, data = LabeledData)
    > model2_ss
    -------------------------------------------------------------------
    Variable selection method : AIC
    Big p small n : FALSE
    Screen variables : FALSE
    Fast processing : TRUE
    Sample size : 26
    No. predictors : 5
    No. burn-in values : 500
    No. sampled values : 500
    Estimated mse : 0.4299
    Model size : 3


    ---> Top variables:
    bma gnet bma.scale gnet.scale
    Marital_Status 0.516 0.516 0.319 0.319
    Born_In_US -0.469 -0.447 -0.440 -0.419
    Race 0.458 0.421 0.926 0.851


    Plot of model2_ss










    share|improve this question











    $endgroup$




    bumped to the homepage by Community 21 hours ago


    This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.


















      3












      3








      3





      $begingroup$


      I'm using spikeslab for the first time, but don't understand what the output means. It was suggested to me that I use it to tell which variables my dependent variable is most correlated to, in a ranked order.
      Particuarly, what is "bma" bma.scale" "gnet" and "gnet.scale"? I also don't understand how to read the corresponding plot to the model.Thanks for any help!



      For example, this is one of the models I created using spikeslab, with its output:



      model2_ss <-spikeslab(Risk_Pct ~ Race
      + +hispanic
      + +Born_In_US
      + +Highest_Education
      + +Marital_Status
      + , na.rm = TRUE, data = LabeledData)
      > model2_ss
      -------------------------------------------------------------------
      Variable selection method : AIC
      Big p small n : FALSE
      Screen variables : FALSE
      Fast processing : TRUE
      Sample size : 26
      No. predictors : 5
      No. burn-in values : 500
      No. sampled values : 500
      Estimated mse : 0.4299
      Model size : 3


      ---> Top variables:
      bma gnet bma.scale gnet.scale
      Marital_Status 0.516 0.516 0.319 0.319
      Born_In_US -0.469 -0.447 -0.440 -0.419
      Race 0.458 0.421 0.926 0.851


      Plot of model2_ss










      share|improve this question











      $endgroup$




      I'm using spikeslab for the first time, but don't understand what the output means. It was suggested to me that I use it to tell which variables my dependent variable is most correlated to, in a ranked order.
      Particuarly, what is "bma" bma.scale" "gnet" and "gnet.scale"? I also don't understand how to read the corresponding plot to the model.Thanks for any help!



      For example, this is one of the models I created using spikeslab, with its output:



      model2_ss <-spikeslab(Risk_Pct ~ Race
      + +hispanic
      + +Born_In_US
      + +Highest_Education
      + +Marital_Status
      + , na.rm = TRUE, data = LabeledData)
      > model2_ss
      -------------------------------------------------------------------
      Variable selection method : AIC
      Big p small n : FALSE
      Screen variables : FALSE
      Fast processing : TRUE
      Sample size : 26
      No. predictors : 5
      No. burn-in values : 500
      No. sampled values : 500
      Estimated mse : 0.4299
      Model size : 3


      ---> Top variables:
      bma gnet bma.scale gnet.scale
      Marital_Status 0.516 0.516 0.319 0.319
      Born_In_US -0.469 -0.447 -0.440 -0.419
      Race 0.458 0.421 0.926 0.851


      Plot of model2_ss







      r bayesian-networks






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      edited Mar 25 '16 at 18:08









      Spacedman

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      1,722616










      asked Mar 22 '16 at 16:46









      JenniferJennifer

      161




      161





      bumped to the homepage by Community 21 hours ago


      This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.







      bumped to the homepage by Community 21 hours ago


      This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
























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          BMA is "Bayesian Model Averaged". GNET is "Generalized Elastic Net".



          Have you tried reading the Ishwaran and Rao papers as mentioned in the documentation for spikeslab? There's an article in the R Journal as well that might be worth reading too: https://journal.r-project.org/archive/2010-2/RJournal_2010-2_Ishwaran~et~al.pdf - no sense duplicating it all here.






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            0












            $begingroup$

            BMA is "Bayesian Model Averaged". GNET is "Generalized Elastic Net".



            Have you tried reading the Ishwaran and Rao papers as mentioned in the documentation for spikeslab? There's an article in the R Journal as well that might be worth reading too: https://journal.r-project.org/archive/2010-2/RJournal_2010-2_Ishwaran~et~al.pdf - no sense duplicating it all here.






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              0












              $begingroup$

              BMA is "Bayesian Model Averaged". GNET is "Generalized Elastic Net".



              Have you tried reading the Ishwaran and Rao papers as mentioned in the documentation for spikeslab? There's an article in the R Journal as well that might be worth reading too: https://journal.r-project.org/archive/2010-2/RJournal_2010-2_Ishwaran~et~al.pdf - no sense duplicating it all here.






              share|improve this answer









              $endgroup$
















                0












                0








                0





                $begingroup$

                BMA is "Bayesian Model Averaged". GNET is "Generalized Elastic Net".



                Have you tried reading the Ishwaran and Rao papers as mentioned in the documentation for spikeslab? There's an article in the R Journal as well that might be worth reading too: https://journal.r-project.org/archive/2010-2/RJournal_2010-2_Ishwaran~et~al.pdf - no sense duplicating it all here.






                share|improve this answer









                $endgroup$



                BMA is "Bayesian Model Averaged". GNET is "Generalized Elastic Net".



                Have you tried reading the Ishwaran and Rao papers as mentioned in the documentation for spikeslab? There's an article in the R Journal as well that might be worth reading too: https://journal.r-project.org/archive/2010-2/RJournal_2010-2_Ishwaran~et~al.pdf - no sense duplicating it all here.







                share|improve this answer












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                share|improve this answer










                answered Mar 24 '16 at 23:19









                SpacedmanSpacedman

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