why do r results depend on the number of covariates? why does regression depend on the number of independent factors why do the rms results depend on numbers of covariates what is the final model if no factor is removed why does fastbw depend on number of covariates how does the function fastbw work what is the rms fastbw function what is the rule of fastbw in r for regression why is fastbw dependent on p value why does logistic regression depend on variables why does the result of fastbw depend on the number of factors? which function does aic use why are factors in final model none fastbw function why do r models depend on factors which factor is considered final in logistic regression why do results depend on number of covariates why do results depend on number of covariates why is r fastbw not based on factor why does r regression depend on covariates