if a na is in the feature select feature, does it indicate that the patient is still alive? how to select a preoperative variable why does glmnet not detect nas why is feature selection useful for preoperative variables what feature do i need for predictive feature selection how many nas are in glmnet feature selection can you use feature selection in glmnet when do you get features that have nas in the data what is feature selection of a surgical data which of the following feature types is considered a continuous variable in a clinical data set? which data type does feature selection work in what is nas in a surgical database what features of a surgical database are nas which feature is in the glmnet feature selection which l1 features have nas which feature of a surgical data type contains nas does the clinical trial include nas what is the difference between a feature selection and a feature selection why does feature selection need to be done is glmnet feature selection