Logit odds missing valuer

[sameer112217]

logit(p)== b0 + b1x1.

If x1 value is missing. what will be the value of the odds? Missing or some value?

Can anyone answer?

[Reeza]

Missing. 

[Ksharp]

You mean a single x1 value is missing 
or all the x1 value are missing ?

[sameer112217]

Single x1 with rest of values

[Ksharp]

If one single obs (x1) is not missing. SAS will remove that obs from fitting MODEL.
Therefore, ODDS should have a value .

[Reeza]

@Ksharp you've assumed the OP is fitting a model, given the formula it could be a simple data step. 

Either way the answer is missing. It would also be much faster to check this out than to ask. 

[Ksharp]

Sorry. 
If one single obs(x1) is MISSING ......

[sameer112217]

Hello Ksharp and Reeza!

Thanks for the explanation. Just to make it clear I am explaining this

The logistic regression equation is: (just an example

logit(p) = -4.48 + 0.11 x AGE + 1.16 x SMOKING

I am  asking for one below

logit(p) = -4.48 + 0.11 x AGE (Just one equation)

and if age value is missing ...what would be outcome?  0? or missing value? or some value

Sameer

[Rick_SAS · Accepted solution]

The predicted value is missing for every observation in which any explanatory variable in the model is missing. The regression model cannot compute a predicted value (or a residual) when there is a missing value on the right-hand side of the  model.

[sameer112217]

Thank you everyone for the help